Answer:
10.45?
Step-by-step explanation:
The answer is4600. I got this by multiplying 25 and 23 which is 575 then you multiply that by 8 which gives you 4600.
Answer:

24x = 8*60
24x = 480
x = 20
Step-by-step explanation:
Answer:
-y^4+4y
Step-by-step explanation:
68= 4x-2+30 (notice they are vertical angles)
68= 4x+28
40=4x
10=x
68+y= 180 (forms a straight angle)
y=112
Final answer: x=10, y=112