Based on the data given on the amounts Chris and Sam are paid, we can infer that Chris earns $0.75 more per hour than Sam.
How much do Chris and Sam earn?
Chris earns $8.25 an hour according to the equation that shows how he is paid of y = 8.25x.
The amount earned by Sam can be found as:
= Any value of y / Corresponding value of x
= 30 / 4
= $7.50 per hour.
The difference between their pay is:
= 8.25 - 7.50
= $0.75
In conclusion, Chris earns $0.75 more.
Find out more on wage rates at https://brainly.com/question/24392720.