Mr kelly bought the indgredients for trail mix he bought 1.5 pounds of peanuts and spent 22.50 on peanuts and chocolates write ane equation and solve what is the number of pounds of chocolates mr kelly bought

Aclothing store has just advertised at a bargain price, that a customer tries on a t-shirt is 0.40. a new range of t-shirts. the probability if a customer tries a t-shirt, the probability that they will buy it is 0.70 while if a customer does not try on a t-shirt, the probability that they will buy it is 0.15. a customer has just bought a t-shirt. find the probability that the customer did not try on the t- shirt.