It’s A:) explanation- I got it right
C
the coins worth should be times the number of coins (dimes/quarters)
Answer:
3(7)
the answer is 21
Step-by-step explanation:
From the problem :

In multiplying expressions with the same bases, the exponent will be added accordingly.
For example :

the exponent of a are m and n, and the product will be a raised to the sum of m and n.
Applying this to the problem, we have :

The answer is d. 6^-1