Please help im not the best at this subject

A

Step-by-step explanation:

Because if she worked for 4 hours on Saturday and she gets $8 per hour, to find how much money she earned on Saturday, you do 8x4=32. Then, you take 72 which is the total amount of money and do 72-32 to see how much money she earned on Sunday alone. That equals 40, and 40÷8(amount of money she earns per hour)=5, so you know how many hours she worked on Sunday.

And I hope you get better at math! Im sure you can do it, it just takes practice. Good luck!:)

hello! just here for points! though i wish i knew!