Hey guys pls tell me where is the mistake in my code

Question

weight=int(input())
height=int(input())
if float(weight/height**2)<18.5:
print("Underweight")
else:
if float(weight/height**2)>=18.5 and <25:
print("Normal")
elif float(weight/height**2)>=25 and <30:
print("Overweight")
elif float(weight/height**2)>=30:
print("Obesity")

Answer 1

If you use the "and" operator, then you need to completely write the comparison condition.
Example:
if a > 0 and a < 5:

If you want to write a condition in an abbreviated form, then it will be the same as in mathematics:
if 0 < a < 5:

bug
else:
if... :

debug
elif:

Answer 2

Aaah okey thank you ^^