Does the system y=5x-8 and y=8-5x have infinite solutions? How do you know?

The scale for a map is 20 miles = 1/2 inch. the distance between two towns on the map is 3 3/4 inches. what is the actual distance between these towns? 150 miles 38 miles 75 miles 135 miles

The surface area of the triangular prism is .

Compute the standard deviation of the following set of data to the nearest whole number. 10, 10, 15, 20, 25