Please help I'm confused. While preparing his garden for spring planting, Brian grabs a shovel that was left outside all winter. He notices its metal component is covered in a red substance. What question can Brian ask to determine if the red substance indicates a chemical or physical reaction?

Help me to do this problem System by sustitution. 4) y = -3x - 7 -6x - 2y = 14 Based on what you have read, which of thesestatements about the leatherback sea turtle iscorrect?A.It will often hunt and eat the eggs of other sea turtles.B.It spends six months in water and six months on land.C.It lives in the coldest waters on Earth.D.It is the largest living marine reptile in the world. Read this problem. A triangle has a perimeter of 165 cm. The first side is 65 cm less than twice the second side. The third side is 10 cm less than the second side. Find the length of each side of the triangle. What equation represents the length of the first side if the second side is length s? Find the a2, a3, and a4 terms of the sequence defined as: help people ship me/kanna with Kobayashi Which sentence or sentences in Anne Frank: The Diary of a Young Girl best support the answer of how Anne dealtwith the anti-Jewish lawsA. Our lives were not without anxiety, since our relatives in Germany were suffering under Hitler's anti-Jewishlaws.B. After the pogroms in 1938, my two uncles (my mother's brothers) fled to Germany, finding safe refuge in the US. my elderly grandmother came to live with us. She was seventy-three years old at the time.C. You couldn't do this and you couldn't do that, but life went on.D. Jacque always said to me, "I don't dare do anything anymore, 'cause I'm afraid it's not allowed."#I give brainlist HELP ME ASAPSamantha and Claire determined the mass and volume of a piece of metal to be 24.16 g and 3.22 mL respectively. Determine the density of the metal. Please help, I will give brainliest to best answerBrainliest checklist:-Must show work-Must be correct good night yllllll.......... What type of Boundary is this? Can small trees contribute oxygen? .In the coordinate x,y the point x is calledoriginabscissaliney-axis list the importance of mucus in regards to a frog skin Which of these statements about the JointCommission are true? Check all of the boxes thatapply. For which value of a are the graphs of 4 = 3x + 6y and ax 8y = 12 parallel?a = -4O a == - 1 / 1a = 1/2Oa = 2 Variable on both sidesJohn will rent a car for the weekend. He can choose one of two plans. The first plan has an initial fee of $57.96 and costs an additional $0.12 per mile driven.The second plan has an initial fee of $47.96 and costs an additional $0.16 per mile driven. How many miles would John need to drive for the two plans to costthe same?II miles? please help!! ill mark brainliest!!!! Two students went for a walk in a small pond ecosystem where they observed several interactions. Read their observation below to find out what they saw. Small fish were found feeding on the green algae. Fish, frogs and snails were harder to find after a family of raccoons came to the pond. Fish and frogs were observed catching insects. As the amount of green algae increased, more insects and snails came to feed on it. A sample of the pond water contained bacteria. Which equation is a linear function? (Look at the photo I attached for the choices) please help me I am confused! Wyatt bought 12 souvenirs during 3 days of vacation. How many days will Wyatt have to spend on vacation before he will have bought a total of 20 souvenirs? Solve using unit rates