Help? which one is the correct one

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

The spring the owner of a sporting good store decreases the price of winter gloves from $10 to $8 each increases the price of swimming goggles from $8 to $10 without doing the math you think the percent decrease in the price of the gloves the same as the percent increase of the goggles explain why or why not

Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.