x = both 25 and 20 + up witch is 45
Answer:
-2r^3+4r^2+12r-4
Step-by-step explanation:
6r^3-2r^2+12r-4-8r^3+6r^2
(6r^3-8r^3)+(-2r^2+6r^2)+12r-4
simplify
-2r^3+4r^3+12r-4
Answer:
61
Step-by-step explanation:
The 3 angles have to add to 180
180 - 69 - 50 = 61
Answer:
Step-by-step explanation:
