Answer:
Correct
Step-by-step explanation:
You got the right equation
7/9 times 21/10 can become 7/3 times 7/10 which is 49/30 which is 1 19/30 at it's most reduced form since 19 is prime.
Answer:

Dividing is the same as putting numbers into a fraction. This is N/8. We don't get the answer until we figure out what N is equal to.
Answer:
I think the answer would be C.)