I think it’s D but not completely sure!
1. The amount will remain the same because 1/8*8/1*x=1x
2. 15*5280/3600=ft per second
P(not 5) =5/6 and P(5) = 1/6
If the first 5 is rolled on the 5th roll then the first four rolls were not 5
P(5 on fifth roll) = 5/6 x 5/6 x 5/6 x 5/6 x 1/6 = 5^4/6^5 = 625/7776 = 0.080375...
