The variable y varies directly with x^2 and y=72 when x=3

In a probability experiment, karen flipped a coin 76 times. the coin landed on heads 32 times. what percentage of the coin flips resulted in tails? round to the nearest percent. a. 58% b. 65% c. 42% d. 60%

Acd that is originally priced at $15.85 red-tagged for the sale. what is the sale price of the cd

Given: △acm, m∠c=90°, cp ⊥ am , ac: cm=3: 4, mp-ap=1. find am.