Correct Question: Find the simplified product: 
Answer:

Step-by-step explanation:
Based on the rules of radicals, since
and
has the same index (square root), therefore:

To simplify this, multiply their bases together, and add their exponents.


Simplify further



Answer:
The solution to the system of equations is:

Step-by-step explanation:
Given the system of equations

Multiply -x+8y=22 by 5: -5x+40y=110

so adding the equations




solve 36y = 144 for y:

divide both sides by 36

Simplify

For 5x-4y=34 plug in y=4


Add 16 to both sides

Simplify

Divide both sides by 5

Simplify

Therefore, the solution to the system of equations is:

Answer:
1. 23
2. 8
Step-by-step explanation:
☆Cross multiply.

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Answer:
11. (x-2)/(x+8)
12. 9+t
13. h = 2A/b
Step-by-step explanation:
11. Since x is used to represent the number, 2 less than a number is x-2. 8 more than a number is x+8. The quotient of the first and second of these is the first one divided by the second one:
... (x -2)/(x +8) . . . . . parentheses are required unless the expression is typeset:

12. Apparently, we're to assume the salesman keeps on driving. If he had any sense (or a good union), he would stop after 9 hours. t hours added to 9 is ...
... 9 + t
13. Divide by the coefficient of h.
... h = A/((1/2)b) = 2A/b