I just need help with the last one I been working on it forever

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%

What are the solutions of the system? solve by graphing. y = -x^2 -6x - 7 y = 2

Is ofat (-25, 0), (25, 0) co- (0, -15), (0, 15)?