The number of question on an exam varies with the number

Step-by-step explanation:

So the number of questions in an exam varies with the number of minutes to take the exam.

For each question there are 5 minutes allotted.

Lets say that there are 'x' number of questions in the exam and 't' is the total time taken to finish the exam, in minutes. So the time taken to complete the exam would be

Therefore, the equation relating the time taken to complete the exam and the number of questions is given by:

So there are two variables in the equation, 't', and 'x':

t - time taken to complete the exam

x - number of questions on the exam

area = length x width

length = 2 x width

32 = 2 x width x width

32 = 2 x width^2

36 = width ^2  

width = 6

length = 12

area is 32

perimeter = 2 x 12 + 2 x 6 = 24 + 12 = 36

step-by-step explanation:

cluster sampling.

step-by-step explanation: