Question

a plumber charges $45 for the first hour and $30 for each additional hour.how much does he charge if it takes him 4 hours to make a repair?

Answer 1

So since he charges $45 for the FIRST hour and there is four hours he only charges $45 for that first hour. And the rest of the time he charges $30 and he has three hours left it would be

30×3 then add the $45 from the first hour

30×3+45= 135 $135 in total

Answer 2

30h+45 is the equation u would use
30(3) +45
90+45
$135

I hope this pleases u