So simple.
18.
If you need help to find why, here's a link
http://www.geteasysolution.com/what-is-30-percent-of-60
Answer:
A. 4/7 feet
B. 4/7 x 15 = 60/7 or 8 and 4/7 feet
Persian History began with Medes.
Kriste respone is wrong
<em><u>Solution:</u></em>
Given that,
Kristen was asked to write each of the numbers in the expression 80,000 x 25 using exponents
Her response was (8 x 10 to the power of 3) x 5 to the power of 2
No, the response of Kristen is wrong
Let us first understand about exponents
An exponent refers to the number of times a number is multiplied by itself
Given expression is:

Here, 80000 has 4 zeros
Therefore, it can be raised as 10 power 4

<em><u>Thus the expression becomes:</u></em>

Also, 25 can be written as 5 power 2

Thus given expression is written as (8 x 10 to the power 4) x 5 power to the power 2
Thus Kristen respone is wrong, because he has raised 10 to power 3