Answer:
12
Step-by-step explanation:
54 / 3 =18
18 x 40 minutes = 720
720 / 60= 12
12 hours
The library gets 2625 dollars. If gift cards are 15 dollars and they sell 500 then they made 7,500 dollars and 35% of that is 2625 dollars
Anna=12x because Demarco is 4x and Anna is 3 times older than 4x
If you let the convenience fee equal x, then...
(2×17.25)+(2×1)+(2×x)= 40.50
There are 2 girls so we multiply all the charges by 2. Add them together and you'll get 40.50. Now if we solve for x, we will get the amount of the convenience fee.
2×17.25 + 2×1 + 2x = 40.50
34.50 + 2 + 2x = 40.50
36.50 + 2x = 40.50
2x = 40.50 - 36.50
2x = 4
x = 2
Each girl paid a 2 dollar convenience fee.