Answer:
25 minutes
Step-by-step explanation:
When there are to people washing one elephant they will take half the time.
So half of the longest time will be the answer to the question.
Mary takes longer then Nigel so once Nigel is finished Mary will still wash her side for 5 minutes extra.
I think it would be a triangle, because they said it would be cut at an angle.
8 3/5 is decimal form would be,

The square root of 40 is a rational number if 40 is a perfect square. It is an irrational number if it is not a perfect square. Since 40 is not a perfect square, it is an irrational number. This means that the answer to "the square root of 40?" will have an infinite number of decimals. The decimals will not terminate and you cannot make it into an exact fraction.
√40 is an irrational number