Answer:
3:5
Step-by-step explanation:
first half : 9
second half : 15
9:15 = 3:5
Each book costs $27.
Subtract 254 - 11.
254 - 11 = 243
Now, divide 243 by 9.
243 ÷ 9 = 27
Hope this helped!
(-1.2,1)