A long distance call costs $0.22 for for the first minute and $0.15 for each additional minute. How long did Carlos talk if his billets $3.52? Write the equation and solve it for m
add .22 and .15 and get .37 then subtract that from 3.52 and get 3.15 that is already two minutes the continue subtracting 15 and you would have 20 minutes and no change so 22 is the answer