Which is the expected value of the random variable with the given probability distribution?

Tanya has $42 to spend at the dolphin island store. tshirts sell for $7 each and a pair of sunglases sells for $6.tanya buys 3 tshirts. how many pairs of sunglases can she buys with the amount of money she has left

Why do interests rates on loans to be lower in a weak economy than in a strong one

Consider circle h with a 3 centimeter radius. if the length of minor arc what is the measure of zrst?