Given two generic variables, a with value "123" and b with value 456, what would the write line output of a + b be

For this case we have the following variables:
 a = 123
 b = 456
 We have the following expression:
 a + b
 Substituting the values we have:
 123 + 456 = 579
 
 the write line output of a + b would be:
 579

Answer for 2: his profit would be $2.88 explanation: you have to first multiply 72 and 0.12 together to get $8.64 once you do that you know how much money the shopkeeper made from selling the candy bars individually. so you have to do 8.64-5.76=2.88 hope that ; )answer for 3: yeah i’m sorry i have no idea what number 3 is. i’m sorry i couldn’t with that.