Based on last week's sales, a store manager concluded that by pricing the store's package of 12 12
donuts at $8
$
8
, the store will sell about 80
80
packages per day. Raising the price to $8.50
$
8
.
50
per package of 12
12
donuts will cause sales to fall to about 76
76
packages per day. If a linear model based on this data is used to predict the daily sales of y
y
packages of donuts when the price per package is x
x
dollars, which statement is true about the rate of change of this linear model?

1. 1/1000 = 0.1%

one divided by one thousand gives us a value of 0.001 in decimal form. when written in percentage, we multiply this by 100% to give us 0.1%

2. 1/8 = 0.125

one divided by eight gives us a value of 0.125

3. 3/5 = 60%

three divided by five gives us a value of 0.6 in decimal form. when written in percentage, we multiply this by 100% to give us 60%

4. 0.60 = 60%

when written in percentage, we multiply this by 100% to give us 60%

5. 7/20 = 0.35

seven divided by twenty gives us a value of 0.35

6. 1.1 = 110%

when written in percentage, we multiply this by 100% to give us 110%

7. 16% = 4/25

16% when written in decimal form is divided by 100% to give us 0.16. this value is the answer when we divide four by twenty-five

8. 1.25% = 1/80

1.25% when written in decimal form is divided by 100% to give us 0.0125. this value is the answer when we divide one by eighty

9. 1 ¼ = 125%

when we write this in proper fraction form, we get 5/4 which has a value of 1.25. when written in percentage, we multiply this by 100% to give us 125%

10. 2/25 = 0.08

two divided by twenty-five gives us a value of 0.08