PLEASE I NEED HELP- :,)

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

Add the fractions and simplify 1/2+ 1/3

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a diamond or heart. (type an integer or a decimal rounded to three decimal places as needed.) (b) compute the probability of randomly selecting a diamond or heart or club. (type an integer or a decimal rounded to three decimal places as needed.) (c) compute the probability of randomly selecting queen or club. (type an integer or a decimal rounded to three decimal places as needed.)