Answer:
21 yards
Step-by-step explanation:
12 pillows x 1.75 yards= 21
21 yards of fabric would be needed to make 12 pillows
(n+20)*2 = 99.2
distribute
2n + 40 = 99.2
subtract 40 from each side
2n = 59.2
divide each side by 2
n = 29.6
For the first one use the slope formula:

So for you that would look like this:

For number 2, in order for a slope to be 0, it has to be a completely horizontal line with no steepness whatsoever. That can ONLY happen with lines that are "y=some constant with no x". So that answer has to be y = -5. For that last one, we have to use the slope-intercept form of a line and use the point they give us along with the slope to find the y-intercept, or the "b". That looks like this for us:

so b= 5/6. So our equation, fitting the slope and y intercept back in, gives us
Answer:
The answer is option B!
Step-by-step explanation: