What are the types of the following expressions and what do they evaluate to, and why?

• 17 number 17
• 1 + 2 * 3 + 4 number 11
• 800 / 80 / 8 number // -> 1.25
• 400 > 200 number true
• 1 !== 1 boolean true
• true || false boolean true
• true && false boolean true
• 20 % 6 number 2
• 'a' + 'b' string 'ab'

What will the following return?

• typeof 4 number
• typeof 'hello' string
• typeof true boolean
• 2 === 1 || 3 === 4 boolean false

Create a truth table for the expression A || B.

For reference, here is a truth table for the expression A && B:

Create a truth table for the expression !A && !B.

For reference, here is a truth table for the expression A && !B:

Create a truth table for the expression !(A || B).

Write a step-by-step evaluation for the following expression (remember order of operations): 2 + 3 * 2 + 1. For reference, here is a exp of a step-by-step evaluation:

1 + 2 + 3 + 4  
    3 + 3 + 4
        6 + 4
            10

Write a step-by-step evaluation for the following expression (remember order of operations): 4 / 2 + 8 / 4.

Write a step-by-step evaluation for the following expression: 'ca' + 'ter' + 'pi' + 'llar'.

Write a step-by-step evaluation for the following expression: 2 * 4 === 8 && 'car' + 'pool' === 'carpool'.

Write a step-by-step evaluation for the following expression: '1' + '2' + '3' - '1'.