A steamboat travels upstream, against the current, at a speed of 5 miles per hour. Later the steamboat travels downstream with the current, at a speed of 9 miles per hour. Choose the system of equations that can be solved to find the speed of the the steamboat, x, and the speed of the current, y.

Which graph represents an even function?

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

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?