5) Consider that a linear equation can be written as follow:
y = mx + b
where m is the rate of change and b the constant.
Based on the given information, you have:
m = 0.24 (dollars per mile driven)
b = 19.95 (fixed cost)
Then, the equation is:
y = 0.24x + 19.95
where y is the cost of renting the truck and x is the number of miles driven.
The cost for x = 188 is:
y = 0.24(188) + 19.95
y = 45.12 + 19.95
y = 65.07
Then, the cost is $65.07