When exponents are separated by a parenthesis it means you need to add them. Because the parenthesis is around the entire number then you raise everything inside the parenthesis to the outside exponent. Then anything raised by 0 as an exponent is automatically 1.
You think of this visually as 3a*3a*3a= 27a^9 is your answer
Excellent 43.0000
Answer 8747744748848833773737374758
<u>Understanding:</u>
The sum of 3 times a number (i'll define it as x) and 4 means 
is between -8 and 10 which means the value of 3x+4 is less than 10 and greater than -8. With that said, the inequality for that problem would be 
.
<u>Solving the problem:</u>
Now we know that , you can solve the problem by <em>subtracting 4</em> from each side then<em> dividing by 3.</em>
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<u>Final Answer:</u>
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The answer is A..... 2 2/3
Percent means parts out of 100
7%=7/100=0.07
'of' means multiply so
7%=0.7
7% of 280=0.07 times 280=196
12%=0.12
12% of 300=36
2%=0.02
2% of $1250=$25
