mean = (sum of values) / (number of values)
we know mean is 13 and we are given 8 values. The ninth value is the missing x:
13 = ((sum of 8 values) + x)/9
13 = (12+10+15+12+13+15+11+15+x)/9
13*9 = 103+x
x = 14
The missing value is 14. There are 14 pillows in the last box.
C it’s korrect now 123456
Answer:
<u>First, find the cost function of DoItRight Housekeeping:</u>
- Slope(m) = cost per hour =

<em>The y-intercept(b), representing the initial cost, can be calculated by substituting in values to the function:</em>

<u>Therefore, the function for two companies are:</u>
- The function for DoItRight is

- The function for CleanIt is

When comparing the two functions, it's shown how CleanIt has a greater y-intercept than DoltRight, meaning that CleanIt has a greater initial cost than DotRight. The y-intercept is when the graph intercepts the y-axis, therefore, the coordinates there would be (0, y-value), which, in this case for CleanIt company, will be (0, 16). While CleanIt has a greater y-intercept(initial cost), DoItRight has a greater slope, meaning they cost more per hour.