Hi to all, my first question is

1.) What is the difference between Dim, Double, Decimal and Integer? When declaring the variables in your code? if you can name a few more with their definitions that would be great!

and my second question is

2.) I have created a simple code using picture box and radio buttons. The each radio button has an item for example: radio button 1 says "car" , radio button 2 says " house" and radio button 3 says "computer". How can i make it to where i when i click on radio button 1 a picture of a car should show and when i click on 2 a house should show, etc. how do i make that magic happen???? please help. do i just use one picture box or three?