A phone company charges a base fee of $12 per month plus an additional charge per minute. The monthly phone cost "C" can be represented by this equation: C = 12 + (a)(m), where "a" is the additional charge per minute, and "m" is the number of minutes used. Which equation can be used to find the number of minutes a customer used if we know "a" and "C" and? (In other words, solve the equation for "m"). * m = (C-12)/a

m = (C - 12) - a

m = C - 12a

help, please!!

Fractions can be added and subtracted only if they're fractions. a. like b. proper c. improper d. unlike

Aiden drives to school and back each day. the school is 16 miles from his home. he averages 40 miles per hour on his way to school. if his trip takes 1 hour, at approximately what speed does aiden drive home?

Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8  feet of ribbon. he cut off one piece that was 3 5/8  feet long and another piece that was 1 1/4  feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.