What value of y makes the equation 3y+ 9 = 36 true?

Miguel’s teacher asks him to color 4/8 of his grid. he must use 3 colors: red, blue, and green. there must be more green sections than red sections. how can miguel color all the sections of his grid to follow all the rules

Given the two similar triangles, how do i find the missing length? if a=4, b=5, and b'=7.5 find a'

Select all the expressions that will include a remainder.