6z+10=-2 solve this question

If 1 km = 0.621 miles, how many miles are in a centimeter

There is a line with slope 1/a going through the point (a, a²). find the equation of the line perpendicular to this line at this point. (don’t let this problem intimidate you! solve the problem as you would if i’d given you specific values. just use variables instead.)

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