Idon’t get it it’s really hard for me bc i’m not that smart

The little three above the 2 represents how many times you should multiply 2 to itself.

2³ = 8, because it's the same as 2 × 2 × 2 (notice how 2 has been multiplied by 2, 3 times).

So now that you know 2³ = 8, you just need to add 4, which is just 8 + 4 = 12.

she will travel a distance in the range of 3 - 11 miles