John can fly his airplane 2,800 miles with a wind speed of 50 mph. In the same time he can travel 2,400 miles against the wind. If the speed of the wind is 50 mph, find the speed of his airplane.

Find the sales tax cor three CDs, if each CD is $14.29 and sales tax is 7.25%

What is 5% of 3720.68

A scalene triangle and a right triangle are always congruent true or false

There are 26 students in a class. Which of the following could be the ratio of boys to girls in this class? a) 1:12 b) 2:3 c) 3:5 d) 5:9 e) 7:1

Infiniti sells 8 different models of cars, with 5 different trim levels and 5 color choices. What is the total amount of options one could choose?

1. Simplify. tan (x + 540) 2. Simplify the expression. sec (x - 360) 3. Simplify. 5cos (x) + 3cos (-x)

When looking at a rational function f of x equals the quantity x plus three times the quantity x minus two times the quantity x plus five all divided by the quantity x minus three times the quantity x plus two times the quantity x minus 5, Charles

recently 5/8 of the items sold at Debbies Sporting Good were baseball caps. at Sasha Sports 7/10 of the items sold were baseball caps which store sold a greater fraction of baseball caps?

You want to find the height of a tower used to transmit cellular phone calls. You stand 100 feet away from the tower and mesure the angle of elevation to be 40°. How high is the tower to the nearest foot

A helicopter leaves central airport and flies north at 180 mi/hr. Twenty minutes later a plane leaves the airport and follows the helicopter at 330mi/hr. How long does it take the plane to overtake the helicopter