Answer:
Step-by-step explanation:
-7x + 12 + (-8x + 48) = 180
-15x + 60 = 180
-15x = 120
x = -8
m<BDC= -7(-8)+ 12 = 56 + 12 = 68
m<CBA = -8(-8)+48 = 64+48 = 112
Multiply 400 times 0.70 and that’s how you get the % (in this case 280)
The equation of the line is y =
x + 9
Step-by-step explanation:
The equation of a line in slope-intercept form is y = m x + b, where
- m is the slope of the line
- b is the y-intercept ⇒ the value of y when x = 0
∵ The line has a slope 
∴ m = 
∵ The y-intercept is 9
∴ b = 9
- Substitute the values of m and b in the form of the equation below
∵ y = m x + b
∴ y =
x + 9
The equation of the line is y =
x + 9
Learn more:
You can learn more about the linear equations in brainly.com/question/12941985
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It is about 35% if i was to estimate
The answer would be 28 pages because 280 divided by 10% or .10 is 28