Answer:
x = 8
Step-by-step explanation:
so 
rearrange the formula:






9.09% increase.
First find the difference between the two numbers.
(4)
then, divide the result by the original amount...
4÷ 44
then multiply by 100
9.09 and that is to the nearest 10th otherwise your answer 9% increase from 44 to 48.
The total amount is $ 1015.82 and interest amount is $ 165.82
<em><u>Solution:</u></em>
<em><u>The formula for amount when interest is compounded annually is:</u></em>

Where,
"A" is the total amount
"P" is the principal
"r" is the rate of interest in decimal form
"n" is the number of years
<em><u>From given, $850 at 2% for 9 years, compounded annually</u></em>
P = 850
t = 9 years

<em><u>Substituting the given values we get,</u></em>

Thus total amount is $ 1015.82
Interest amount = Total amount - principal
Interest amount = 1015.82 - 850
Interest amount = 165.82
Thus total amount earned is $ 1015.82 and interest amount is $ 165.82
The correct answer is A. All triangles' interior angles equal 180.