He circumference of a circle<span> is equal to the diameter times pi. So, let's look at </span>what happens<span> if you double the </span>radius<span> of a </span>circle<span> -- say from 2 to 4. The area will go from 12.56 to 50.24. This means that it has </span>quadrupled<span>.</span>
Answer:

Step-by-step explanation:
first multiply both side by 2 to get rid of the fraction





M=72 that’s the best I can give you lol not sure if that helps any
Answer:
14
Step-by-step explanation:
f(-2) = 3(-2)² + 1 = 3(4) + 1 = 12 + 1 = 13
Answer:
3/4=63/84
66.66%=56/84
5/7=60/84
⇒66.66%; 5/7; 3/4
Step-by-step explanation: