On 10 I can’t figure out how to do it

Translate the following words into an expression: “the quotient of a number and three is five.”

Marlow is comparing the prices of two trucks rental compaines company a charges $3 per hour and an addtional $75 as serivce charges company b charges $2 per hour and an additional $85 as serivce charges

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