Find an equation for the line below

Aremote-controlled boat can travel at 4 feet per second in calm water. the boat traveled 48 feet with the current, and then it traveled 16 feet against the current in the same amount of time. how fast is the current?

The functions f(x) and g(x) are shown in the graph f(x)=x^2 what is g(x) ?

4. a single woman uses an online cash flow calculator which reveals a cash flow of 203. what does this mean?