Arestaurant sells a coffee refill mug for $ 6.75 each refill costs $ 1.25 last month keith spent $ 31.75 on amug and refills write an equation you can use to find number of refills that keith bought

in if you ask questions, the points are taken from your total and given to the one who answered it..

so if i have 30 points and i ask a question for 5 points, then when someone asks a question i will lose 5 points and the answerer earns 5

happy to