Answer:
A,C,D. those 3 have a percent error of less then 15%
First thing you need to do is distributive property and that will give you
7-56-7x=-14+4x then combine like terms which will then give you
-49-7x=-14+4x Next get your letters on the left do that by subtracting 4x which will give you -49-11x=-14. After that you will add 49 to both sides which will give you
-11x= 35. Divide by -11 to get x=3.18
Yes, because no matter how many zero's you put at the end of a tenth, it still equals the same. (Ex. 0.9 = 0.9000000000000000000000)