Answer:
You have to know the basic properties of exponents.
Jill's answer is wrong because you add the powers when there are like bases. You don't multiply.

-3+6=3
The base stays the same.
225÷14= 16.0714285714, so about 16 ounces per day, so multiply that by seven equals 112.4999999998, so about 112.5 ounces per week
Answer:
(-5, 10)
Step-by-step explanation:
I used the substitution method.
Answer:
$640 is how much she will make in in regular hours.
Step-by-step explanation:
Create an equation from the word problem and solve.