What are the terms in the algebraic expression
102 + 10 +
3b

Ahigh definition tv cost $800 with a down payment of 2/5 of the cost. how much is left to pay, in dollars after the down payment has been made?

Two cyclists 84 miles apart start riding toward each other at the same. one cycles 2 times as fast as the other. if they meet 4 hours later, what is the speed (in mi/h) of the faster cyclist?

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?