5 The grocery store sells cheddar cheese at the deli counter. The weight of the cheddar cheese changes by-8 lb in 5 days. What rational number represents the
average change in pounds of the cheddar cheese each day?
A-1.6
B -0.625
C 0.625
D 1.6

The path traveled by a bottlenose dolphin as it jumps out of water is modeled by the equation y=-0.4+3x, where t is the height above water and x is the horizontal distance in feet. if a beam of light is shone upward at an angle modeled by the equation x+y=10, at what height from the waters surface will the beam of light hit the dolphin