why does it say expected expression for the error i dont even know [edit: what] is wrong

import math

name=input(“What is your name:”)

print(“Welcome “+name)

print(””"

Which operation would you like to do:

1 - Addition

2 - subtraction

3-multiplication

4 - division

5- exponent

6 - factorial

7 - tax

8 - bmi

9 - tips

10 - temperature

11 - log

12 - cos

13 - sin

14 - tan

“”“)

o = input(”")

if o == “1”:

x = int(input(“What is your first number”))

y = int(input(“What is your second number”))

add(x, y)

print(x + y)

elif o == “2”:

x = int(input())

y = int(input())

subtract(x, y)

print(x-y)

elif o == “3”:

x = int(input())

y = int(input())

print(x*y)

elif o == “4”:

x = int(input())

y = int(input())

print(x/y)

elif o == “5”:

x = int(input())

y = int(input())

print(x**y)

elif o == “6”:

x = int(input())

print(math.factorial(x))

elif o == “7”:

price=float(input(“What was the original price of your purchase:”))

if price<0 :

print(“Invalid input”)

quit()

taxrate=float(input(“What is the tax rate of your area (the tax rate of texas is 0.0625):”))

if taxrate>15:

print(“Invalid input”)

quit()

if taxrate<0:

print(“Invalid input”)

quit()

print(“The additional tax is:”)

tax=print(price*taxrate)

total=float(total=(tax+price))

print(“Your total purchase is:”)

print(total)

elif o == “8”:

h=float(input("Enter your height in meters: "))

w=float(input("Enter your Weight in Kg: "))

BMI=w/(h*h)

print("BMI Calculated is: ",BMI)

if(BMI>0):

if(BMI<=16):

print(“You are very underweight”)

elif(BMI<=18.5):

print(“You are underweight”)

elif(BMI<=25):

print(“Congrats! You are Healthy”)

elif(BMI<=30):

print(“You are overweight”)

else:

print(“You are very overweight”)

else:

print(“invalid input”)

elif o == “9”:

bill = float(input(“What is the total bill? $”))

print (“So you need to pay $” + str(bill) + “.”)

tipping_amount = int(input("What percentage would you like to tip? 5, 10, or 20% ? "))

print ("So, if you were to tip " + str(tipping_amount) + “…”)

people = int(input("How many people are you splitting the cost with? “))

bill_with_tip = tipping_amount/100 * bill + bill

bill_per_person = bill_with_tip / people

final_amount = round(bill_per_person, 2)

print (“Each person should pay $” + str(final_amount) + " each.”)

elif o == “10”:

elif o == “11”:

x = int(input())

print(math.log(x))

elif o == “12”:

x = int(input())

math.cos(x)

elif o == “13”:

x = int(input())

print(math.sin(x))

elif o == “14”:

x = int(input())

y = int(input())

print(math.tan(x))

all the elif statements 8 and after all say expected expression idk why