Answer:
7.068583471 km ^2
Step-by-step explanation:
pi x radius² is area
pi x 1.5² = the answer
For this problem, you would have to use a system of equations. Hope this helps!
Answer:
y+9=21
Step-by-step explanation:
9 more than y equals 21.
First thing to do is set up your equation:
45/x = 20/100
Cross multiply
4500 = 20x
And divide by 20
Answer: 225 people were surveyed