Answer: $2.30
Step-by-step explanation:
Because if we do $27.60 divided by 12 we get 2.3 which then means 1 book cost $2.30
HOPE THIS HELPS ^^
-16t^2+400=0
16t^2=400
take square root on both sides.
4t=20
t=20/4
t=5
Answer:
no more than 20 days