(6^5-6^4)/5

A1/5
B6/5
C6³
D64 / 5
E64

6^4

(None of the options are correct, unless letter E is actually 6^4 instead of 64)

Step-by-step explanation:

The objective of the question is to simplify the expression:

(6^5-6^4)/5

So we need to make this expression be in its simplest form, which we can do making the following operations:

(6^5-6^4)/5

= (6*(6^4)-(6^4))/5

= 5*(6^4)/5

= 6^4

None of the options showed has this expression or a similar expression that have the same value.

Maybe letter E is written wrong: instead of 64, it would be 6^4, so the correct option would be letter E.

associative property of multiplication

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w