how do I represent on a number line??? helppp plz​

In the xy-plane, if the parabola with equation passes through the point (-1, -1), which of the following must be true?

Is the power produced directly proportional to the wind speed, give reasons for your answer?

Emily is entering a bicycle race for charity. her mother pledges $0.90 for every 0.75 mile she bikes. if emily bikes 18 miles, how much will her mother donate?