498 is approximately 500
12 is approximately 10
500/10 = 50
So, 498/12 is approximately 50.
1/4 to a decimal 0.25
to a percent is 25%
Answer:

Step-by-step explanation:
we know that the circumference is equal to

we have

substitute


Answer:
1. 343
2. 64
3. 81
4. 12.25
Step-by-step explanation: