Posted by Melea on Monday, August 15, 2011 at 6:50pm.
Write an expression for the sum of 1 and twice a number n. If you let n be any odd number, will the result be an odd number?

Math  Ms. Sue, Monday, August 15, 2011 at 6:59pm
1 + n
If n = 1 or 3 or 5 or 7  will the sum be odd or even?