Concept:
First eliminate the t from x=3t and then put it in y=t² and then graph it. As, limit of t is not restricted so t ∈ R(all real numbers)
As it is difficult to make graph here so I have solved it by hand and add all detail regarding it.
Answer:

Step-by-step explanation:
From the question we are told that
Consumers seen the soap 
Consumers used the soap 
Consumers seen/tried the soap 
Generally the probability that consumers have seen and tried the soap is



Hello!
If you answered 22 questions on the test in 5 minutes, there will be an unequal time amount. 22 x 3 = 15 minutes (66 questions) 22 x 4 = 20 minutes (88 questions).
Therefore, it would take you 17.5 minutes to finish all the questions on your test.
Enjoy.