Answer:
x + 3y = 21
Step-by-step explanation:

Equation of the line: y =mx+ b

Multiply the equation by 3
3y = -x + 21
x + 3y = 21
Answer:
27.5 inches
Step-by-step explanation:
(68.1+11.2+x)/3=35.6
68.1+11.2+x=106.8
79.3+x=106.8
x=27.5
Answer: X = -9
Step-by-step explanation:
You can set up a ratio to solve this.
208/13 = -144/x
208x=-1872
x = -9
-1.331. -1.1 * -1.1 * -1.1
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