What is the syntax error?

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")