Posted by **garrett** on Thursday, November 17, 2011 at 11:51am.

Which properties did Carmen use to solve the following problem?

17 + (45 + 23)

17 + (23 + 45)

(17 + 23) + 45

40 + 45

85

## Answer this Question

## Related Questions

- algebra - 2. The level of thorium in a sample decreases by a factor of one-half ...
- math - give a problem that you could simlify using the communitive and ...
- Math-help!!! - Elly writes the following expression on the blackboard. (13+24)+0...
- math-please help! - Use the properties of lines to parallel solve the problem. ...
- Algebra - I need help with this problem: Use the five properties of exponents to...
- Algebra - I'm really lose with this problem...HELP Using Cramer Rule If D=O use ...
- math, correction,plz - can someone correct these for me plz.... Problem#36 Use ...
- algebra - Alicia finished the race 3.75 seconds befor Kaye. Donna finished the ...
- Algebra/Distributive Properties - Solve these fraction equations: 2/3 - 8/9 = c/...
- tax and discount - Carmen is going to buy a pair of jeans that cost $30.00. the ...