Option d:
is the correct answer.
Explanation:
The expression is 
We need to simplify the expression, using the product of powers.
The product of powers states that "when multiplying two powers with the same base the exponent values can be added up".
Thus, grouping the same base and adding the exponent values from the expression
, we have,

Adding the exponent, we get,

Thus, the simplified expression is 
Hence, Option d is the correct answer.
The correct answer is D hope this helps
Answer:
look that up on goggle in you will find your answer
So we have to add the expenses and savings, and subtract them afterwards, lets call them negative and positive respectively to group them:
negative = tuition + room + book + personal
negative = 7800 + 6725 + 1200 + 2225
negative = 17950
positive = savings + grant + scolarship
positive = 5685 + 1500 + 3750
positive = 10935
we have to subtract the negative from the positive to have a grand total:
total = positive - negative = 10935 - 17950= -7015
that means that the savings, grant and scholarship are not enough to pay the total expenses, they lack $7015 indeed