Answer:
Its the symbol "pi" which is 3.14
All i know is that if the radius of a circle is 4 feet, the the diameter is 8 feet. Sorry, I don't know the rest.
Distance = rate x time
D = 450 mph x 2.5 h
D = 1,125 miles
7- 5n=6+6(n+2)
7- 5n=6+6n+12
7 -5n=18+6n
5n-6n=18-7
-11n=11
n=-1
