Answer:
She made 792 dollars that week. I'm assuming it is just asking for the yearly commission she made. That would be 41,184 dollars a year.
Step-by-step explanation:
7200 x 0.11 = 792 Weekly
52 Weeks in a year
792 x 52 = 41184 Yearly (if that's what it's asking for)
]Answer:

Step-by-step explanation:
Substitute the value of the variable into the equation and simplify.

Solve it out.
Multiply / divide / add / subtract everything out.
Answer:
If your trying to simplify then your answer would be 
You must find the least common multiple of 8, 5, and 10. In this case the least common denominator is 40. 8•5= 40, 5•8= 40, and 10•4= 40. Answer: 40.