What’s the correct answer for this?

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

Tim's phone service charges $23.06 plus an additional $0.22 for each text message sent per month. if tim's phone bill was $28.56, which equation could be used to find how many text messages, x, tim sent last month?

Prove that (x-2)is factor of p (x)=2x³-3x²-17x+30