Answer:
72 miles/day
Step-by-step explanation:
12 m/hr * 6 hr / day = 72 mi/day
'Commutative' means you can work it in the other direction without changing it.
But 1/2 is not the same number as 2/1 . So I guess division is NOT commutative.
A. C(n)=10n+125
cost×number of buttons is equal to 10 cents times the number of buttons, plus the $125 cost of the button machine
