Chapter 1 in Henry's book is 6 1/2 pages long. Chapter 2 is 8 2/3 pages long. How many pages are Chapter 1 and Chapter 2 altogether? How much longer is Chapter 2 than Chapter 1

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