Anybody who could me with this .i will. apreciate all the answers:

Q59) 
15/150 = 1/10
so he earns 1/10 of the shoes' cost.
q60)
type each term into a calculator so:
(3.28 - 0.81)x and (1.4-0.45)
q61)
2 hours is 120 minutes so in this time the submarine will have descended (15*120)

try to give these questions a shot before coming on here it'll be far more beneficial