I have this question I'm stuck on for a while. "Jake collects stamps. He has 4 times as many as leopard stamps then tigers stamps. The number of elephant stamps Jake has is divisible by 7. How many elephant stamps does he have?"

Simplify a7/a4 a) 1/a3 b)-a/a2 c)a4/a3 d)a3

Plz hurry evaluate the expression a+b where a=8 and b=19

Match the vocabulary to the proper definition. in probability, two events in which 1. conditional probability the outcome of one event is independent of the outcome of a second event. 2. dependent events in probability, two events in which the outcome of one event is dependent on the outcome of a second event. the probability of an event in which the outcome of the event is conditional on the outcome of one or more different events. 3. independent events