On a tour of an old gold mine, gina finds a nugget containing 0.82 ounce of gold. if gold is worth $1566.80 per ounce how much is gina's nugget worth?

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