A truck with a heavy load drove from Boston to New York at 40 mph. After unloading, it returned from New York to Boston at a speed of 60 mph. What was its average speed for the whole trip?

Testing a Lie Detector The table below includes results from polygraph (lie detector) experiments conducted by researchers Charles R. Honts (Boise State University) and Gordon H. Barland (Department of Defense Polygraph Institute).

If the length of side a is 12 centimeters, m_B = 36°, and m2C = 75°, what is the length of side b? Round your response to two decimal places.

Approximate the square root of 600 to the nearest tenth. A. 24.3 B. 24.4 C. 24.5 D. 24.6

at the city pool you can buy an ice cream cone for $5 and a popsicle for $2. The pool sold 81 treats for a total of $312. How much of each treat did thry sell? Be sure to define your variables

Muriel says she has written a system of two linear equations that has an infinite number of solutions. One of the equations of the system is 3y = 2x - 9. Which could be the other equation? a. 2y = x - 4.5 b. y = 2/3x - 3 c. 6y = 6x - 27 d.

what is 3m * (2m) ^2 + 3 (2m) ^3?

Given: ΔABC; a = 10; b = 4, and c = 11. Find the measurement of ∠B to the nearest tenth of a degree.

In a recipe for fizzy grape juice, the ratio of cups of sparkling water to cups of grape juice concentrate is 3 to 1. a.

A coral reef grows 0.11 m every week. How much does it grow in 13 weeks?

What is the interquartile range of the following data set? 13, 17, 18, 15, 12, 21, 10