20 miles/2 hours = 10 miles/1 hour, therefore her average speed is 10mph
8,000,000,000+300,000,000+90,000,000+
2,000,000+3,000+800+30
Computing the rate we get:

Then, when the assembly line runs at the same rate for 24 hours they will produce:

Answer: Option C) 720.
A) 0
B) 6
C) middle number, or middle 2, averaged, so 3
D) 1
E) 4
F) 6-0 = 6