The answer is the first option: 1) 
> the quantity 
times 
minus 
all over 
The explanation is shown below:
1. To solve this problem you must pply the following proccedure:
2. Move the term
to the left member. As the variable is negative, multiply the expression by
and change the direction of the sign:
You add the previous 2 numbers so the answer would be 162
The y intercept is 17. You can see it clearly in the equation.
Answer:
66
Step-by-step explanation:
36x4=144
36x3=78
144-78=66
Assume the mattress have no width, only length.
By Pythagoras' Theorem, √(72^2 + 80^2) = 107.6 inches.
