Question

Jack works after school. Each day he is paid a set amount, plus an hourly wage.

Answer 1

Answer:

D. $53

Step-by-step explanation:

Given the function, f(x) = 10x + 8, representing how much Jack earns working for x hours, if Jack works from 2:30 P.M to 7:00 PM, it means Jack worked for 4 hours 30 minutes, which is 4.5 hours (30 minutes = 0.5 hr).

Therefore, to find out how much he earned working for 4.5 hours, substitute x = 4.5 in $f(x) = 10x + 8$

$f(4.5) = 10(4.5) + 8$

$f(4.5) = 45 + 8$

$f(4.5) = 53$

✅Jack will earn  $53 for working between 2:30 PM and 7:00 PM