### Home > CC1 > Chapter 4 > Lesson 4.1.1 > Problem 4-9

4-9.

Simplify each expression below. For each expression, draw a picture or show how you know your answer makes sense. Homework Help ✎

Use a drawing such as the one to the right to help you make sense of the problem.

Starting at 5, add −4. In other words, subtract 4.

Now add 12.65.

13.65

See part (a).

Add what is in the parentheses first, then multiply by 4.

Use a drawing as in part (a) to help make sense of this problem.

Remember to subtract what is in the parentheses first before multiplying by 2.

Make sure all multiplication is done before adding.

31

Remember to show how you know your answer makes sen

See part (e).