What is the simplified form of (2 + 4) - 15?

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

If you are trying to move an attached term across the equal sign (=), what operation would you use to move it?

Suppose a store sells an average of 80 cases of soda per day. assume that each case contains 24 cans of soda and that the store is open 10 hours per day. find the average number of soda that the store sells per hour.