Here are the correct responses to your questions:
Question 1: An expression has an equal sign.
Response: False
Question 2: What is the inverse operation to addition?
Response: Subtraction
Question 3: What is the inverse operation to subtraction?
Response: Addition
Question 4: How many hours do you have to work in Dreambox Math each week?
Response: It doesn't matter (though some programs might have specific requirements, this option suggests flexibility).
Question 5: What do you have to do to solve 5 + X = 15?
Response: Subtract 5 from both sides
Question 6: You can make up prior weeks in Dreambox Math.
Response: True
Feel free to ask if you need further assistance!