The answer is The function is constant from x = -2 to x = 1.
The answer is 10 because if you count by 2 all the way to 18 you get 10
1. Find the unit rate
15 books divided by 5 days = 3 books sold per day.
Since we are looking for how many days it would take the store to sell 21 bucks, we could do 21 (amount of books) divided by 3 (how much books is sold in a day).
Therefore, it will take a week / 7 days to sell 21 books.
2x+(-1.5x-2)=4
2x-1.5x-2=4
0.5x-2=4
0.5x=4+2
0.5x=6
x=6×2
x=12
y= -1.5(12)-2
y= -18-2
y= -20
We know that it costs $68 for 16 square feet of flooring. To find out how much it costs for 12, we first have to find out how much it costs for 1 square foot.
To find that, we would do $68 divided by 16, which is 4.25.
That means 1 square foot costs $4.25.
Then, we would multiply $4.25 by 12 to find how much 12 square feet costs.
$4.25 times 12 is 51.
So, it would cost $51 to have 12 square feet of flooring.