Answer:
It took him 12 hours
Step-by-step explanation:
480 / 40=12
Answer:
you will need 3 quarters and 5 nickel
Step-by-step explanation:
3 quarters is 75 and 5 nickels is 25 =1.00
In base 12, A represents 10 and B represents 11. So
7B6A (base 12) = 7*12^3 + 11*12^2 + 6*12^1 + 10*12^0
7B6A (base 12) = 12,096 + 1,584 + 72 + 10
7B6A (base 12) = 13,762 (base 10)