If 2x-5 is a factor of the poloynomial 4x^4-28x^3+59x^2-23x+c what value does c have?

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

Due to a packaging error, 4 cans labeled diet soda were accidentally filled with regular soda and placed in a 12 pack carton of diet soda. two cans were randomly selected from this 12 pack. what is the probability that both cans were regular soda?

Anyone know these questions? i need ,.