The answer is 4. 7+(-3) is like 7 minus 3.
Neither of them are functions. Functions cannot have two of the same numbers in the x value, and since the first table has two 5s in the x column and the second table has two 7s, neither of them can be functions.
Hope this helps :)
The believe that the best answer among the choices provided by the question is the second choice "5 : 3".Hope my answer would be a great help for you. If you have more questions feel free to ask here at Brainly.
We are asked to find 7 is what percent to 30.
We will use proportions to solve our given problem.
Let us assume that 7 is n% of 30. So we can set a proportion as:
Let us solve for n.
Therefore, 7 is 
of 30.
