Acell phone cost $210 a battery charger costs $15 and batteries cost $5 .what is the sales tax and total price for purchasing these items if the sales tax rate is 7%

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 measure of angle 0 is 600 degrees

An incoming airplane is x miles due north from the control tower at an airport. a second incoming airplane is y miles due east of the same control tower. the shortest distance between the two airplanes is z miles. which of the following functions would best model the situation above?