Answer:
the answer is 28
Step-by-step explanation:
345÷12=28.75
you can't have a 0.75 shirt
Jsjdjsjsjsjsjsjsjsjjsjsjsj I want points
Divide 18 to both sides and you get -12
I’m sorry I do not know the other person was rude
The function for the height is

f(0) = 5 cos(0) + 7 = 5 + 7 = 12 (verified)
The period is T = 12 hours.
After 4 hours (t = 4), the height is

A graph of f(t) confirms the answer.
Answer: 4.5 ft