Tell whether the function is quadratic. explain please
{(2,12), (-1,3), (0,0), (1,3)}

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m

Find the unit rate. enter your answer as a mixed number. a fertilizer covers 2/3 square foot in 1/2 hour.

You work in a hospital that has 9 floors. you need to see 3 patients on each floor. how many patients do you need to see in all?