Answer:
The number of tickets for sale at $26 should be 3300
The number of tickets for sale at $40 should be 1700
Step-by-step explanation:
Use 2 equations to represent the modifiers within the problem:

Now you want to find the point at which the variables are changed to make both equations correct, this can be done by graphing and finding the intersection of both lines.

Answer:
Part A
3 Bathroom and 3 Kitchen
Part B.
$13,500
Step-by-step explanation:
Bathroom per day = 3
Average profit of Bathroom = $1,200 per hour
Kitchen per day = (12 hours - 3 hours)/3 = 3 kitchen
Average Profit from Kitchen = $3,300 / 3 = $11,00 per hour
As the company cannot do more than 3 bathrooms which has higher per hour average profit, the remaining 9 hours will be utilized for Kitchen Installation.
Part A.
Company will do 3 Bathrooms and 3 Kitchens in order to maximize the profit under given condition.
Part B.
Total Earning = ($1,200 x 3 ) + ($1,100 x 9 ) = $3,600 + $9,900 = $13,500
The company will earn Average profit of $13,500.
It is NOT linear, this is because the line isn't a straight line.
And immediately you could determine that it isn't linear