Answer:

Step-by-step explanation:
- Re-write the expression:
÷
- 31/6 ÷ 7/10 = 31/6 × 10/7
×
- 310/42 = 155/21
I hope this helps!
Answer: 78 hours
Step-by-step explanation:
1 cabinet = 3 hours
26 cabinets= 78 hours
We must multiply 26 by 3 to get the total amount of hours.
26x3=78
You would approximate because the hypotenuse might not be a perfect square.