A motorboat travels 216 km in 4 hours going upstream. It travels 312 km going downstream in the same amount of time. What is the rate of the boat in still water and what is the rate of the current?

Which equation represents a line that is parallel to the line whose equation is 3x-2y=7( show all work)

Determine if the outside temperature is a function of the time of day or if the time of day is a function of temperature and explain why or why not.

Marion has a bicycle that she is planning to take for a ride. the rim of the rear wheel lies 41 cm from the center of the wheel. the tire itself has a thickness of 3 cm. in order for marion to ride her bicycle 96,712 cm approximately how many rotations will the rear wheel make?