Answer:
-6 This is your answer it help you
Answer:
a.)
Step-by-step explanation:
Answer:
12+40= 52
180-52=128
Step-by-step explanation:
Angles in a triangle add up to 180
so if two sides are given , they must be added and subtracted from 180.
which gives us 180-52=128
If you do 81 x 9 which equals 729. If you want to check, you do 729 divided by 9 and you get 81.