1. var a = 10, c = “ cats” , b; c = “I have “ + a + c ; b = a % 4 ; a = a + b ; What’s the value of a? What’s the value of b? what’s the value of c? 2. var yourFirstName = prompt (“what’s your first name?”), yourLastName = prompt (“what’s your last name?”); var completeName = yourFirstName + yourLastName; what’s the value of completeName ? 3. var number = 4, var destination = “My dream is to visit “ + number * 500 + “ countries” destination is gonna print ?????? 4. var a=20, b= 45, c=“3” ; a = a + c; b = b - a; what the value of a, and b??