The graph shows the distance, y, in miles, of a moving motorboat from an island for a certain amount of time, x, in hours: What is the speed of the motorboat?

13 mph
26 mph
39 mph
117 mph

On a architect's drawing of a house, 1 inche representa 1.5

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?