15. john works for the local used car dealership. his weekly salary is $375 plus a commission based on the number of cars that he sells. his commission is $80 per car for the first 7 cars sold each week. for any car over 7 sold each week, john earns a commission of $180 per car. complete the piecewise function that can be used to calculate john's weekly salary, s, when he sells t cars each week. note: use the letter t as your variable

S = 935 when t ≤ 7

S = (180t - 325) when t > 7

Step-by-step explanation:

John's weekly salary = $375 + commission on number of cars he sell

Commission for the first seven cars sold = $80 per car

Commission above 7 cars = $180 per car

If John sells t cars each week then commission earned by John

= 80×7 + 180(t - 7)

So the salary for week = 375 + commission

S = 375 + 560 + 180(t - 7)

S = 935 + 180(t - 7)

S = 935 when t ≤ 7

     (180t - 325) when t > 7

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.