The 1st row has 15 chairs.
The 2nd row has 15 + 3 = 18 chairs.
The 3rd row has 18 + 3 = 15 + 2•3 = 21 chairs.
The 4th row has 21 + 3 = 15 + 3•3 = 24 chairs.
The pattern continues, so that the n-th row has 15 + (n - 1)•3 = 3n + 12 chairs.
If there are 15 rows, then the total number of chairs is

where we use the formulas


The Soviet Union joined the Allies after being invaded by Germany.
The type of technology which an IT engineer that is planning a website upgrade with load balancing features would use is called reverse proxy.
<h3>What is a
reverse proxy?</h3>
A reverse proxy can be defined as a type of server that is placed directly in front of other servers such as a web server, and it is typically configured to route (forward) an end user's requests to those multiple servers sitting right behind it.
This ultimately implies that, the load balancing of a server is a strategic process that allows the even distribution of network traffic across multiple servers and it involves the use of a type of technology referred to as a reverse proxy.
Read more on reverse proxy here: brainly.com/question/17054032
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It is to access an applicant's academic qualifications
I have not read any shakespeare books yet but I can say that we are all flawed. some in more ways than others, but we are all different and have flaws just like everyone else. So the answer i’d go for is B. flawed.