Answer = The string would be 4pi feet longer than the Earth's circumference at the surface at about 12.5 feet.
(hope this helps)
Answer:
25
Step-by-step explanation:
3a=30... equation 1
2a+2b=30... equation2
equation 2 => a+b=15 ... equation 3
equation 1 => a = 10 ... equation 4
equation 4 & equation 3 => b = 5
5^2 = 25
They will have the same amount of money at week 13 with $410 for each of them
Well 4/5 is 80% and 9/10 is 90%
9/10 is bigger. :)
