Solve it 7/10+2/3 pls write correct answer​

Which of the following is the missing term, a2, of the geometric sequence in which a1=2 and a3=200

What is the solution to the equation 9^(x+1) =27

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.