Which of the following expression is a rational expression

At school there are 526 students and 263 are girls about how likely is it that a randomly chosen student will be a boy

If m 17 27 90 63 ** picture is attached

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%