Answer:
D
Step-by-step explanation:
17c + 9 = 10c + 9 - 7c
COMBINE LIKE TERMS
10c + 7c = 17c
9 IS NOT A LIKE TERM, SO WE LEAVE IT ALONE
It's positive when you have 6^-2 it's the same as having . So 6^-2 it's 1/36.