Three friends want to divide seven apples equally how many apple each friend receive

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.

Afair die is cast four times. calculate the probability of obtaining exactly two 6's round to the nearest tenth of a percent

Yvaries inversely as x. y =12 when x=5. find y when x=4