Answer:

A is correct.
Step-by-step explanation:
Given: 
We are given a exponential expression and to simplify it.
Exponent Law:
- Product Rule:

- Quotient Rule:

- Negative Exponent:


Using Quotient rule


Using Product Rule


Using Negative exponent law

Therefore, 
$720 * .06 = 43.2
He will make $43.20 more each week.
110.0, 120, 100 I think those are the answer
<h2>Age Problem</h2><h3>
Answer:</h3>
Kassim is
years old this year.
<h3>
Step-by-step explanation:</h3>
Let
be Kassim's age this year.
Kassim's age after
years is
. Also,
times the age of Kassim is
. We are told that after
years, Kassim's age will be
times as his age. So,
.
Solving for
:

Answer:
-68
Step-by-step explanation:
64 x -1 + -4
-64 + -4
-68
EASY!