Answer:
11. 3
12. 9
13. 4
14. 6
15. 28
Explanation:
11. the distance from -6 to -9 is 3
12. the distance from 0 to -9 is 9
13. the distance from 0 to -4 is 4
14. the distance from 0 to -6 is 6
15. set up the equation 14+3x-4=4x+4, or 3x+10=4x+4 and solve for the value of x, by bringing the x's to one side of the equation, and the rest of the numbers on the other side. You should get to x=6, then plug that value in the equation AC= 4x+4 (4x6 + 4) to get the length of AC as 28.