Mr. robinson has 20 students in his martial arts class. the ratio of boys to girls is 4: 1. how many boys and girls are in mr. robinson's class?

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%

Anumber cube is rolled two times in a row. find the probability it will land on 2 on the first roll and a number greater then 4 on the second roll

Solve -.016x= -16. need solving this