I need help with these

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?

Closing a credit card usually _your debt ratio.a. increasesb. decreasesc. improvesd. has no effect on

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.