40 mins left please help 100 points

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a seven or king. (b) compute the probability of randomly selecting a seven or king or jack. (c) compute the probability of randomly selecting a queen or spade.

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i