What does the solution (8, 5.5) mean in the context of this problem? The cost of 8 child tickets is $5.50. The cost of 8 adult tickets is $5.50. A child ticket costs $8, and an adult ticket costs $5.50. An adult ticket costs $8, and a child ticket costs $5.50.

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