What is the value of c so that y=x^2+15x+c is a perfect square.
a. 30
b. 15/2
c. 15/4
d. 225/4

The area of a rectangle is 54x^9y^8 square yards.if the length of the rectangle is 6x^3y^4 yards,which expression represents the width of the rectangle in yards

You wanted to draw an enlargement of design that printed on a card that is 4 in by 5

Combine like terms to make a simpler expression 3z+z