Says to write a variable expression.

Question

An auto repair bill is $220 for parts and $45 for each hour of labor. If h is the number of hours of labor, express the amount of the repair bill in terms of the number of hours of labor.

Please help I really don't understand this.

Answer 1

220+45h

Note that when h=0, there is just the flat fee. Then add 45 each time h increases by 1.