Answer:
m ≥1187
Step-by-step explanation:
Flat fee plus cost per minute equals total cost
19 + .04m ≥ 66.48
Subtract 19 from each side
19 -19 + .04m ≥ 66.48-19
.04m ≥47.48
Divide by .04
.04m/.04 ≥47.48/.04
