I don’t understand how to solve this (geometry)

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%

Which number produces a rationale number when multiplied by 1/5

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)