3520*5=17600. You could just use a calculator if you're going to cheat, you know.
If you mean 4 / (11/8)
= 4 * 8/11
= 32/11
= 2 10/11
= 2.909
That problem has only one solution
Plug in the given values and you'll see its option 2.
x=0 , f(x) = 0^2 + 1 = 1
x = 1 , f(x) = 1^2 + 1 = 2
x = 2, f(x) = 2^2 + 1 = 5
1/5 of a pizza in 1/2 hour
2/5 pizza in one hour