C! 80 + 10 is 90, 90+90 is 180. There are 180 degrees in one triangle
Answer:
-2 5/9
Step-by-step explanation:
w + (-x) - 2/3
Let w = -5/9 and x = 4/3
-5/9 - 4/3 - 2/3
Get a common denominator
-5/9 -4/3*3/3 -2/3*3/3
-5/9 -12/9 -6/9
Add
-23/9
Change to a mixed number
-2 5/9
This is just stuff you have to memorize, I can’t really explain much further than product always means multiplication. The “product of” means k*m
