The morning high tide at a beach is 57 inches. Six hours later, the afternoon low tide is 12 inches. What is the mean hourly change in the height of the tide?

Choose the correct slope of the line that passes through the points (1, -3) and (3, -5)

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?

Atriangle has an area of 72 square inches. if the base of the triangle has a length of 18 inches, what is the height of the triangle? use the formula for the area of a triangle: area = (base)(height) type a numerical answer in the space provided. do not include the units or spaces in your answer.