Since you already know how to multiply, how you do this is when you see a negative sign your answer will come out as positive, and if there's no negative sign then your answer is positive. If there's 2 negative signs then your answer is positive.
(+)(+) = positive
(-)(+) = negative
(-)(-) = negative
Answer:
A because 72 divided by 8 is 9 and Henry earns $12 per hour and mike get $9 per hour so there is a $3 difference
Step-by-step explanation: