Answer:
The associative property will be:

So, Option C is the correct option.
Step-by-step explanation:
We need to write the expression that uses the associative property to make it easier to evaluate: 
The associative property of multiplication states that: 
So, For the given expression:

The associative property will be:

So, Option C is the correct option.
Answer:
he would have to work 43 hours
Step-by-step explanation:
So if we know that at job one he gets payed 860 dollars a week and in job two he gets payed 20 per hour all we need to do is divide 860 by 20 to find the number of hours in a week and it would be 43
Answer:
33493.3
Step-by-step explanation:
Sphere
Solve for volume
V=4/3πr^3 4/3*3.14*20^3=33493.3
The volume of a rectangular prism can be found from the formula V=B•h
The base is the triangle
The area of the triangle can found using A=b•1/2h
13•1/2(8)=52
V=52 x h
52•9=468
468in^2