Answer:
75 degrees.
Step-by-step explanation:
All interior angles of a triangle add up to 180.
So we can set up an equation: 65+40+x=180
105+x=180
x=180-105
x=75
Obviously, 0.8, all you do is move over the decimal.
Answer:
12
Step-by-step explanation:
divide 84 by 7.
Answer:
x=-2.5
Step-by-step explanation:
2x-10÷4=3x
2x-2.5=3x
-2.5=x
Answer:
-2496
Step-by-step explanation: