David was in three javelin compition with a mean distance of 40.9.what is the total altogether

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

Marlow is comparing the prices of two trucks rental compaines company a charges $3 per hour and an addtional $75 as serivce charges company b charges $2 per hour and an additional $85 as serivce charges

Daniel bought a computer game for $25 and later sold it to thomas for a 40% profit. how much did daniel sell the computer game for?