If we expand bx to jx and kx we have:
5y^2-2y-7
5y^2-7y+5y-7 then factor...
y(5y-7)+1(5y-7)
(y+1)(5y-7)
So the other factor is:
(y+1)
It would use 2.83 gallons of gas for a 2 hour trip
You would do pi x r squared. r=12, and 12 squared is 144. pi (3.14) times 144 equals 452.16!
1 hour = 60 minutes
27/60 = 0.45 miles per minute
The answer is (14) just add them all up
