Answer:
3rd one
Step-by-step explanation:
they already have two red cards and the box of n cards was divided equally among 4 people
Looking at the problem I think the answers are C, D, AND E
A. Your Choice
B. Green (Your Choice, but the other answers are only applicable if you use 1 color.)
C. Same color
D. The walls are 8 * 20 ft and 8 * 25 ft, and there are 2 of each of those.
That means you are painting 720 ft^2
There is 1 gallon per 400 ft^2, so you need 2 gallons of paint.
It costs $13.98 per gallon, so you need $13.98 * 2 = $27.96
Answer:
m = 
Step-by-step explanation:
<h3>
Finding the slope of the given line </h3>
We need to find the slope of this equation to find the slope of a line perpendicular to it. This means we must solve for y.
Start off by subtracting 8x from both sides of the equation to start isolating the variable y.

Now solve for y by dividing both sides of the equation by -7.

This can be broken into two parts by distributing the negative sign from the -7 into the 9 and -8x like so:

The slope of a line is the coefficient of x, so in this case the slope of the given line (
) is
.
<h3>Finding the slope of a line perpendicular to the given line</h3>
Two lines that are perpendicular would have opposite reciprocal slopes, which means the perpendicular slope would be the negative counterpart and would be flipped.
For example, if you have 2 as the slope of one of the perpendicular lines, the other line would be the opposite (-2) reciprocal (
).
Therefore, since we have the slope of one of the perpendicular lines (the given line), we would find the opposite reciprocal of it's slope to solve this problem.
Slope: 
- Opposite:

- Reciprocal:

The slope of the line perpendicular to
is
.
6 7/8. You must get a common denominater. I used 8, which multiplis 4 times 2. Then the top number is multiplied by 2 to get 2/8. Now add the tops and bottoms to get 7/8. Now add the whole numbers to get 6.