Options:
A.) square root
B.) exponential
C.) absolute value
D.) cube root
Answer : A) square root
We know area of square having side 's' = s* s = 
For example
Area of square = 
To find side we take square root
Area = 
16 = 
Take square root on both sides

4= side
Betsy knows that the area of the rug is A square feet.
Area A = 

So answer is square root.
Missing part of the question
Determine the number of handshakes, i, that will occur for each number of people, n, in a particular room. (people)
Answer:

Step-by-step explanation:
Given
For 5 people

Using the given instance of 5 people, the number of handshakes can be represented as:

The above sequence is an arithmetic sequence and the total number of handshakes is the sum of n terms of the sequence.

Where
--- The first term
--- The last term
So:


Answer:
C. t = 10d
Example:
If i rode the bike for 3 miles then
t = 10(3)
Then,
t = 30
So, the bike was rode for 30 minutes