Answer:
615.75
Step-by-step explanation:
A=4 times pi times r squared
4 times pi times 49 = 615.752160104
Round it to 615.75
That's it right there. That expression can't be simplified.
Answer:
$2 per ride
Step-by-step explanation:
$32-$20=$12
McKenna rode 6 rides so $12 divided by 6 rides is $2 for every ride