Answer:
3/20 hour
Step-by-step explanation:
5 tasks ------------------------------ 3/4 hour
1 tasks ------------------------------3/(4×5) hour
-------------------------------3/20 hour
All numbers that are not rational are considered irrational. An irrational number can be written as a decimal, but not as a fraction. An irrational number has endless non-repeating digits to the right of the decimal point.
Its two squares, so you need to start by finding the perfect roots that go into 117. If you need more help after that just comment :)