the answer to this question is 500 dimples on a golf ball.
Answer:

Step-by-step explanation:
first things first:

now:

now the intersection is:

Answer:
y+9=21
Step-by-step explanation:
9 more than y equals 21.
Answer:
about 18.2%
Step-by-step explanation:
All you have to do is divide the result of the percent, so 25.7, by the total, 141.
So 25.7÷141=0.18226950354
We round it to 0.182 and multiply it by 100 to know the percent which is 18.2