Hey, need help understanding a math question... I cant seem to know the answers- am terrible at math

m∠1=(2y-7° and m∠3=(y+17)°
What is the m∠1 ?

What is the m∠2?

What is the m∠3?

What is the m∠4

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.)