C.
-3 squared is 9. 9 + (-3) is 6.
Therefore, it's C
Answer:
Step-by-step explanation:
5^4
------
5^6
625
-----
15,625
625/15625=25
Answer:
Seth has 21 nickels
Step-by-step explanation:
Let n represent the number of nickels. Since Seth has 8 more nickels than dimes, then (n-8) is the number dimes.
Nickel is worth 5 cents and dime is worth 10 cents. Thus, n nickels are worth 5n cents and (n-8) dimes are worth 10(n-8) cents. The total value of Seth's coins is $2.35 that is 235 cents, then

Solve this equation:
