Mr. Leonard is renting a car for one day. The table below shows the total amount he will be charged for the car based on the number of miles he drives. Which equation best represents c, the number of dollars Mr. Leonard should be charged for driving m miles?
Car rental. Number of miles, m. 5, 10, 15, 20. Total Amount charged, c. $30.50, $31.00, $31.50, $32.00.
c = 30, m + 0.50
c = 30, m + 0.10
c = 0.50, m + 30
c = 0.10, m + 30