After 6 weeks of school, 53,000 sheets of computer are left. 4,500 sheets are used each week.
a. write an equation that represents this situation where s is the total number of sheets left and w is the number of weeks.
b. how many sheets of paper did this school start with?

These tables represent a quadratic function with a vertex at (0, -1). what is the average rate of change for the interval from x = 9 to x = 10?

Two cars which are 40 miles apart start moving simultaneously in the same direction with constant speeds. if the speed of the car which is behind is 56 mph and the speed of the other car is 48 mph, how many hours will it take for the car which is behind to catch up the car ahead of it?

What is the point slope form of a line with slope -5 that contains point (2,-1)