A jar of 25 lollipops in a clinic has 7 that are grape, 10 cherry, and 8 orange. If a nurse selects 4 lollipops randomly, what is the probability that they will all be grape?

The probability of grape is 7/25 or 28%. The total is alway the denominator of the fraction and the amount of each type is the numerator. So the fraction is 7/25. To find the percent you multiple the fraction by 4 because 25*4=100 so the percent is 28% because 7*4=28.