7. There are 100 balls in a bag. 45 of them are white, 30 are red, 15 are blue, and 10 are orange. a. What is the probability if an orange ball was picked first, put back, and then a red ball picked? (with replacement)

In Pennsylvania’s Cash 5 game, a player chooses five different numbers from 1 to 43. If these five numbers match the five numbers drawn (in any order), the player wins (or shares) the top prize. What is the probability of winning the top prize when the player buys one ticket?