If susan has 1 whole pie and she gives 3 fourths of a pie to her friend, how much pie does she have left?

2-digit numbers less than 91 which are 1 less than a multiple of 10

One side of a rectangle is 7 feet shorter than seven times the other side. find the length of the shorter side if we also know that the perimeter of the rectangle is 306 feet.

What number should be added to the expression x^2+3x+ in order to create a perfect square trinomial? 3/2 3 9/4 9