Joe is taking part in a run for charity. he has earned $250 in pledges just for running and $40 in pledges for every mile he runs. write an expression that represents the total amount of money joe earns. then, write an expression that represents the amount of money joe earns per mile. (you should have two
expressions for this question.)

The graph shows the prices of different numbers of bushels of corn at a store in the current year. the table shows the prices of different numbers of bushels of corn at the same store in the previous year. previous year number of bushels price of corn (dollars) 2 10 4 20 6 30 8 40 part a: describe in words how you can find the rate of change of a bushel of corn in the current year, and find the value. part b: how many dollars more is the price of a bushel of corn in the current year than the price of a bushel of corn in the previous year? show your work.

Kelli swam upstream for some distance in a hour. she then swam downstream the same river for the same distance in only 6 minutes. if the river flows at 5km/hr, how fast can kelli swim in still water?

Factor this polynomial completely. 12x^2+ x-6