Answer:
3) -1 = A
4) 5 = C
5) Yes
Explanation:
5) 2x + 5 = 5x - 7
- 5x - 5x
_________________
-3x + 5 = -7
- 5 - 5
_____________
-3x = -12
_____ _____
-3 -4
x = 4
RS

ST

RT

Since both ST and RS are 13, and doubling them gives
__
you the whole segment of 26, S is the midpoint of RT.
4) To find point C, find the range between everything:
From 8 to 2 → 6
-6 + 2 = -4
-4 = C
3) To find the midpoint, find the range, then take HALF of that range:
From 3 to -5 → -8 [HALF of this would be 4]
3 - 4 = -1
-1 = A
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