a car rental company charges a flat rate of $29 per day and an additional $0.15 per mile. Write an equation to model the total charge

29d + 0.15m =

To write an equation that models the total charge for the car rental, we can use the following information:

- The flat rate charge per day is $29.
- An additional charge of $0.15 per mile is applied.

Let's assume x represents the number of miles driven.

The equation that models the total charge (C) would be:
C = 29 + 0.15x

Here, the $29 represents the flat rate charge per day, and the 0.15x represents the additional charge per mile, which is determined by multiplying the number of miles (x) by $0.15.

Therefore, to calculate the total charge for the car rental, you would substitute the actual number of miles driven into the equation and solve for C.