A dolphin swims 665,280 feet in 3 hours. Use the formula d = rt, where d represents distance, r represents rate, and t represents time, to answer the following questions. Show your work. Part A: Rearrange the distance formula, d = rt, to solve for rate. (3 points) Part B: Find the dolphin's rate in feet per hour. (4 points) Part C: Rearrange the distance formula, d = rt, to solve for time. (3 points)