Answer:$57.75
Step-by-step explanation:
Find the total amount of hours he worked

So, he worked 5.5h and he earns $10.50 an hour.
($10.50)(5.5h)=$57.75
You take how much she makes and multiply it by the hours she works
10.25*7
=71.75
-9 is a rational number. Rational numbers are numbers that can’t be written as a simple fraction like pi (3.14...etc)
D IF YOU SUBTRACT 4 FROM THE OTHER SIDE YOU HAVE -20+-4= -24 THEN YOU DIVIDE -24 BY 3 AND YOU GET -8 AS YOUR ANSWER