It would make a lot more sense if the choices were 's' instead of '8'. With that being said, the answer should have a value that is greater than -10. That would be a positive number, or a negative number from -1 to -9. <em>So, the acceptable answers would be A and B.</em>
For #2 the answer is letter f
Pentagons have five sides, so 5*7 is 35 units