Answer: The profit after 5 seasons is $239.94.
Step-by-step explanation:
Since we have given that
Revenue function is given by

Cost function is given by

So, We need to find the total profit:
As we know the formula for profit:
Profit = Revenue - Cost

We need to evaluate the profit after five seasons:

Hence, the profit after 5 seasons is $239.94.
Answer: 10r
Step-by-step explanation:
The car travels at a rate (r) and has the constant rate time 10 hours. r * 10 = 10r
The sum is the total of the given values being added.
Given the expressions above, to add them, you just have to add the numbers with the same terms. 13x2 and 8x2 have the same terms which is x2, therefore, you can add both and the result is 21x^2 then just copy 5x so the sum would be 21x2 + 5x. Hope this answer helps.
Answer:
1. 
2. $2,520
Step-by-step explanation:
1. Given numbers 39 and 91. Factorize them:

then

Use distributive property:

2. Month salary = $2,100
To find 10% of $2,100, just multiply $2,100 by 0.1 (because 10% is 0.1 as decimal):

$210 is the monthly tax, then the year tax is

Complete question
A 29-meter ladder is sliding down a vertical wall so the distance between the top of the ladder and the ground is decreasing at 7 meters per minute. At a certain instant, the bottom of the ladder is 21 meters from the wall.
What is the rate of change of the distance between the bottom of the ladder and the wall at that instant(in meters per minute)
Answer:

Step-by-step explanation:
From the question we are told that
Slant height 
Change in Vertical height 
Horizontal length 
Generally in finding the distance form the top to the bottom of the wall it is mathematically given by




Generally solving for the differential equation is mathematically represented as






