From the sentence, it can be deduced that "at" is used a preposition.
<h3>What is a preposition?</h3>
It should be noted that a preposition simply means a word that is used before a noun or pronoun to show direction, place, time, etc.
In the sentence "They discussed four important issues at the meeting", the word at is a preposition. It is used to show where the issue took place.
Learn more about preposition on:
brainly.com/question/17476214
Answer:
The real estate should charge $1,300 to obtain maximum profit.
Explanation:
We can make K to represent the number of unit apartment occupied.
This means that the total rent the real estate office is getting can be denoted by;
{(550 + 25(80 - K)} K - 50K
Maximizing the above equation, we have;
y = 550K + 2,000K - 25K^2 - 50K
Collect like terms
= 2,500K - 25K^2
y' = (2,500K - 25K^2)' = 2,500 - 50K
y = 0
2,500 - 50K = 0
2,500 = 50K
K= 50
Rent is therefore;
Rent = 550 + (80 - K)25, where K is 50
= 550 + (80 - 50)25
= 550 + (30)25
= 550 + 750
= $1,300
The spillover effect is best explained in terms of the two-factor theory. Although psychology based, marketers use this in developing marketing plans for their product or service. The two-factor theory is based on psychological emotions and cognitive thinking.
