Answer:
3hr 30min
Step-by-step explanation:
3hr 30min
B. 21.39 because I said so and I did all the calculations and apparently I need more than 20 words but there is your answer enjoy
Let the width be x, then the length is x + 12.
Area = length x width = x(x + 12) = 589

Solving the quadratic equation, we have that
x = 19 feet
i.e. the width is 19 feet.
Consider that 100%-72%=28% represents the percentage of wrong answers. I would think as fractions as:
if 100% is the total number of answers and 28% are the wrong ones
as
if x is the total you have 14 wrong you can write:

x=(100/28)*14=50 questions