Jane's friend is wrong, the original price would be $200
Answer:
-20
Step-by-step explanation:
(r + b − g)(b + g)
we have fom statement:
r = 9
b = 5
g= −6
so we have:
(r + b − g)(b + g)= (9+5-(-6))*(5+(-6))
(r + b − g)(b + g)= (14+6)*(-1)
(r + b − g)(b + g)= -20
This is the formula for finding the area of a trapezoid
The equation of the line in slope - intercept form is 
Explain what the slope-intercept form is?
Simply put, the slope-intercept form is the way to write a line's equation so that the y-intercept (where the line crosses the vertical y-axis) and slope (steepness) are instantly visible. This expression is sometimes referred to as y = mx + b form
Given: x = -4 , y = 2 and b = -5
y = mx + b
2 = m (-4) + (-5)
m = 
By putting the value of m we get equation of line

Learn more:
What is the slope-intercept form of the linear equation 4x + 2y = 24????
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Answer:
y = -11x - 13
Step-by-step explanation:
Step 1: Subtract 11x from both sides.
Therefore, the answer is y = -11x - 13.