Answer: 4 or 
To find the square root of a number, remember that there will be two factors that are the same that will give you the product.
Lets start from 1:
1 x 1 = 1
2 x 2 = 4
3 x 3 = 9
4 x 4 = 16
As you can see, 4 x 4 is 16. To make sure I'm correct, remember that a square roots consists two identical factors.
4 and 4 are the same numbers.
Therefore,
= 4
It can also be written as 
Answer:
<h2>10</h2>
Step-by-step explanation:
Given the expression
. To find the product of this two values, the following steps must be followed.
According to one of the law of indices, 

The product is 10
The reciprocal of seven (7) would be 0.142857143
Answer:
$103.75
Step-by-step explanation:
we know that
Karen earns $62.25 for working 9 hour
so
using proportion
Find out how much she will earn for working 15 hours

Answer:
B
Step-by-step explanation:
Charla uses 2 cups of mix per 6 cups of water.
2/6 = 1/3
Rae uses 3 cups of mix per 7 cups of water.
3/7
To compare these fractions, we need to find the common denominator. In this case, it's 21.
1/3 = 7/21
3/7 = 9/21
9/21 is greater than 7/21, so Rae's lemonade will taste stronger.