Answer:
x = 26, y = 9
Step-by-step explanation:
Add the bottom equations and set them equal to 180
8x -28 = 180
8x = 208 divide each by 8
x = 26
Find the bottom right, 3(26) - 11
78 - 11 = 67
The unlabeled top left box is also equal to 67 degrees.
So 2y + 5 = 23
2y = 18
y = 9
Step-by-step explanation:
2b-3ac
=2×2-3×2×(-1)
= 4+6
=10
Answer:
2, 4, 2, 8, 16
Step-by-step explanation:
