C: 9 ( = 3^2), 49 ( = 7^2), 81 ( = 9^2)
Answer:

Step-by-step explanation:
We want to express 3⅓ as a percentage.
Let us first of all rewrite 3⅓ as decimals to obtain:

To express this as a percentage, we multiply by 100%

This multiplies to give us:

Answer:
18. b
19. b
Step-by-step explanation: