Kayla won 47 super bouncy balls playing hoops at her school's game night. Later, she gave two to each of her friends. She only has 7 remaining. How many friends does she have? Write an equation and then solve.

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true