Ijust need on math period. i need with-15+b=-9 and -104=8x and x-7=13 so if anybody could just me with my math ill be very happy u know like my little toutor

Jorge planted flowers in his garden he planted one row of 12 tulips and one row of 36 daisies george's friend kylie has a garden with 75 flowers in it kylie's garden only contains tulips and daisies. is it possible for kylie‘s garden she have the same ratio of tulips to daisies as george's garden?

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

What is the answer to the question 5x+2x