school project that doesnt work!!!!!!

[Jimbo1991]

i have an assingment at school in which i have to use if statments but my code wont work. heres my code: var meal1 : real

var meal2 : real
var meal3 : real
var meal4 : real
var subtotal : real
var total : real

put "chicken burger 5.55"

put "regular burger: 4.95"

put "pasta: 4.75"

put "drinks: 1.00"


if meal1 = 1 then
subtotal := 5.55
elsif = 2 then
subtotal := 4.95
elsif answer = 3 then
subtotal := 4.75
elsif answer = 4 then
subtotal := 1.00
put "your subtotal is 5.55"

heres the assinment
: Question #2: Create a restaurant menu. There should be at least 4 different choices displayed along with their prices. Then ask the user what choice they would like, adding the price to their total. Finally display they?re total to the screen with the PST and GST.

can anybody help me?!