No solution.
Solve for x.
x+1=x+2
>move x to the left side (combine variables)
> 0+1=2
>1=2 (1 doesn't equal 2, so no solution)
The answer is 48, 51, 52, and 45
The surface area is 565.4ft² and the volume is 1,017.8ft³
Hope this helps :)
If you want me to show you how I got it just let me know
Using that 1 mile = 1,6 km so 5 miles = 5*1,6 = 8 km
and 250 miles = 250*1,6 = 400 km