The answer is 4 1/6 because 4/1 + 1/6= 25/6 = 4 1/6.
The series 7 + 16 + 25 +34 +43 +52 + 61 is an illusration of arithmetic series
The sigma notation of the series is: 
<h3>How to write the series in sigma notation?</h3>
The series is given as:
7 + 16 + 25 +34 +43 +52 + 61
The above series is an arithmetic series, with the following parameters
- First term, a = 7
- Common difference, d = 9
- Number of terms, n = 7
Start by calculating the nth term using:
a(n) = a + (n - 1) * d
This gives
a(n) = 7 + (n - 1) * 9
Evaluate the product
a(n) = 7 - 9 + 9n
Evaluate the difference
a(n) = 9n - 2
So, the sigma notation is:
Read more about arithmetic series at:
brainly.com/question/6561461
The drawing which shows two lines that intersect at Point, A is as represented in Choice 1: Top-left corner.
Discussion:
In geometry, a line or straight line was introduced by ancient mathematicians to represent straight objects with negligible width and depth.
- Lines are therefore an idealization of such objects, which are often described in terms of two points or referred to using a single letter.
Ultimately, The drawing which shows two lines that intersect at Point, A are as represented in Choice 1: Top-left corner.
Read more on intersection of lines:
brainly.com/question/9047265
Less than because it is negative and 2 is positive.
The question is probably incomplete. What i am assuming is that the person might ask for the previous ratio or the total number of pens and pencil in the drawer.
So if it is the previous ratio it obviously would be 47 - 5 : 17 -3 so 42 : 14 and in case he or she is asking for the total number of pens and pencils in the drawer before so they were 42 + 14 hence 56.
