The first one !!!! Hope this helps
Square root of 9 is your answer
This is a fairly easy problem, actually. Take all your options and do the equation (which is 2(x+2)-17) until it gets to 35. I recommend you use a calculator, but you can do it on paper if you need to. If you don't have answer options, I'm happy to work it out with you !
The amount of trees the farmer has and how much he harvest on average