Answer:
0
Step-by-step explanation:
-10 + 10
-10 and 10 are additive inverses, so when we add them, it is equal to zero
-10 + 10 = 0
Answer:
a) x = 70
Step-by-step explanation:
70 (2) +20 +20
140 + 40
180
The answer is a right triangle meaning that all sides and angles are equal.
To make a dot plot, make a numbered line and add dots above the numbers of the given ages. If there are more than one of the same number, add a dot above the dot already there.
See attached picture: