Need help with 4, thanks!

x=2

Step-by-step explanation:

In order to solve this problem, you need to find the scale factor. This is done through cross multiplying proportions. In this instance, you have to cross multiply x/4 by 3.5/7. When you multiply x and 7, you get 7x. When you multiply 3.5 and 4, you get 14. Simplify by isolating the variable, and you get 2.

1/800 is the right answer

yes the total will be same because in both of them the expression.is rearranged but their sign remains the same hence it hss just been shuffled