Which shows the expression below in simplified form?
(4.5x10^8)/(5x10^3)

A. -0.5x10^4
B. 9x10^4
C. 9x10^5
D. 9x10^6

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

Tom can paint the fence in 12 hours, but if he works together with a friend they can finish the job in 8 hours. how long would it take for his friend to paint this fence alone?

Madeline takes her family on a boat ride. going through york canal, she drives 6 miles in 10 minutes. later on as she crosses stover lake, she drives 30 minutes at the same average speed. which statement about the distances is true?