ECONOMICS 20PTS As an investment into his snow clearing business, Jay made a non-refundable purchase of a snow plow for $1,000. The plow can clear two parking lots per hour, and when Jay uses a shovel he can clear one parking lot per hour. He charges the same price regardless of method. Discouraged by the high cost of the plow, Jay considers going back to his old method of shoveling parking lots. Based on the information given, Jay should
A. Use a shovel.
B. Use the snow plow.
C. Use the shovel until the plow has been paid off.
D. Use the snow plow until it has been paid off.
E. Alternate between shovel and plow until the plow has been paid off.

If the graphs of the linear equations in a system are parallel, what does that mean about the possible solution(s) of the system? a. there are infinitely many solutions. b. there is no solution. c. there is exactly one solution. d. the lines in a system cannot be parallel.

Acircle has a circumference of 7.850 units. what is its radius?

The school track has eight lanes. each lane is 1.25 meters wide. the arc at each end of the track is 180. the distance of the home straight and the radii for the arcs in the 1st 4 lanes are given. s=85m r1=36.5m r2=37.75m r3=39m r4=40.25m part one: find the radii of lanes 5 through 8 of the track. show your work. part two: if max ran around lane one, how far did he run? show your work and explain your solution. part three: max wants to run a total of three laps around the track, choose two additional lanes (2-8) for him to run and find the distance around those two lanes. show your work and round to the hundredths. part 4: based on your lane choices in part three, what was the total distance max ran in the three laps around the track?