1hr/3600sec=15hr/x
(3600sec)(15hr)=(1hr)x
x=54000seconds
15 hours is 54000 seconds
I believe the answer is 1.1112007e+16 because 14^5=537824 and 14^-9= 4.8400258e-11. You divide both numbers and get 1.1112007e+16
Answer:
area if circle =πr²=π6²=36πmm²
add all the numbers without a minus.