What the closets estimate of 692-343

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

Ageologist had two rocks on a scale that weighed 4.6 kilograms together. rock a was 0.5 of the total weight. how much did rock a weigh?

God's gym charges a sign-up fee of $100 plus $30 per month. write an expression to represent how much someone would pay for a membership.