For this case we have that each coupon costs $12. So:
Buy a ticket: $12
Get a second ticket at half price we have:
. Thus, the total to be paid will be $12 + $6 = $18.
Therefore, the correct expression is:

Answer:
12+ (12 divided by 2)
Option C
I think it is 1 1/3 from getting the unit rate of 2 2/3 divided by 2
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Answer:
The length has 9 cube so the length is 9/8 or 1 1/8 ft.
the width has 4 cubes, so the width is 4/8 or 1/2 ft.
The height has 11 cubes, so the height is 11/8 or 1 3/8 ft.
So, the volume of the portion of the security wall that Tim has constructed so far is 99/128 cu ft.
Step-by-step explanation: