Answer:
Step-by-step explanation:
69.15 rounded off to the nearest hundredth is 69.15...
4 and 12
a = young
b = old
b = 3a, a+b =2a+8 => a = 4, b = 12
5.66
c^2= a^2 plus b^2
c^2 = 16 plus 16
c^2 = 32
c = 5.6568
