8th grade math please help! ill give brainliest, can also answer in comments

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

Saline iv fluid bags cost $64.20 for 24, 1000 ml bags from one supplier. a new supplier sells 500 ml bags for $2 each. the hospital uses about 10,000, 1000 ml bags each month. nurses report that about half of the bags are more than half full when they are discarded. if you are going to use only one supplier, which size bag provides the best deal, and how much will you save each month? compare the cost of the new supplier to the current one.

When 142 is added to a number the result is 64 more then 3 times the number. option 35 37 39 41