Answer:
a.
b. $37.50
Step-by-step explanation:
To find out how much the 5 were paying in total, we can add the bill and the tip. This gives us x + 10. Since there are 5 people and they are splitting the bill equally, the total amount would be divided by 5 to get the amount each person pays:
. We already know the amount they each paid, as it is given as $9.50. Both expressions represent the same thing, do we can set them equal to each other:

Now, we can solve.
First, we can multiply by 5 on both sides to get:
47.5 = x + 10
And then subtract 10:
x = 37.5
This means the bill before the tip was $37.50
Answer:
The third option has a linear slope.
Step-by-step explanation:
8ft by 12ft
the real question is why they randomly switched from metric to standard system. :P
Answer:

Step-by-step explanation:
So we have the equation:

First, let's distribute the negative:

Combine like terms:

Subtract or add:

Subtract 6 from both sides:

Divide both sides by 3:

And we're done!