Show by parentheses that the sum of x and y is to be subtracted from 4 times the sum of x and y​

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

Two cyclists 84 miles apart start riding toward each other at the samen time. one cycles 2 times as fast as the other. if they meet 4 hours later what is the speed (in miles) of the faster cyclists

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?