This is a story problem. You may use the method of your choice to solve the problem. (substitution, combination, elimination )
The sum of 2 numbers ( x and y ) is +12
The difference of the same 2 numbers is -4
1. Which method will you use and why?
2. How will you set up the equation needed to solve?
3. What is the solution expressed as an ordered pair? (x,y)

1. Inno "Use and to find the estimate" (square root of 9 is 3 and 16 is 4)

2. 39 (square root of 1500 is 38.729...….)

3. -17 (can't be written as a fraction)

4.  A? (I don't know bruh)

5.  (square root of 36 is 6 and 49 is 7, and 47 cant be squared without it being a decimal)

6. -8.5  (  is 8.4   )

7. 12, 167

8. 14

9. If it is rational it can be written as a fraction. So 7/8 is a rational number while π is irrational

10. Finding a cube root for me is harder and takes more steps than finding the square root. To find the square root of 64 is simple. I can do that in my head its 8, but finding the cube root is much harder. So I go one by one till I get to a number that can go into it. 1 is just 1. 2 x 2=4 x 2=8. 3 x 3 = 9 x 3 = 27. 4 x 4 = 16 x 4 = 64