What is the expression equivalent to (-2x + 3) + (-6 + 3)

If the measure of xyz is 81 what is the measure of yz

Acircular city park has a sidewalk directly through the middle that is 111 - feet long. if each bag of fertilizer covers 50 square feet, then determine how many bags of fertilizers the parks and recreation department needs to use to cover the circular park. ignore all the sidewalks around and through the park.

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