Answer:
-72
Step-by-step explanation:
Sum is adding so I just did substitution for this. 26+-72=-46 because a positive plus a negative equals a negative.
Answer:
24,19
Step-by-step explanation:
24+19=43
24-19=5
Answer:
4.8
Step-by-step explanation:
You just subtract to solve for d so,
8.2 = 3.4 + d
-3.4 -3.4
4.8 = d
You forgot the picture of the square, please repost the question with the picture next time.