Christopher’s the backyard is in the shape of a trapezoid. The bases of his back yard are 30 and
40 feet long. The area of his backyard is 525 square feet. Write and solve an equation to find the height of
Christopher’s back yard
1)2)3)

Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8  feet of ribbon. he cut off one piece that was 3 5/8  feet long and another piece that was 1 1/4  feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12

Ireally need subtract and simplify.(-y^2 – 4y - 8) – (-4y^2 – 6y + 3)show your work, ! i will mark you brainliest but you have to show your work.