14 + n = m
14 (-14) + n = m (-14)
n = m - 14
hope this helps
Left side:
x+x+x+1+1+1+1+1+1+1+1 = 3x + 8
Right side:
x+x+x+x++1+1+1+1+1+1
Left side = Right side to solve x
3x + 8 = 4x + 6
Subtract 4x from both sides
3x + 8 - 4x = 4x + 6 - 4x
Simplify
-x + 8 = 6
Subtract 8 from both sides
-x + 8 - 8 = 6 - 8
Simplify
-x = -2
Multiply both sides by (-1)
-x * (-1) = -2 * (-1)
Simplify
x = 2
Answer
C. x = 2
The percent of the markup will be $1.9.
Answer would be D. Since area of a circle equals A=pi•r^2 and the radius is 11 so pi•11^2 = around 379.9