40 in^2 because you add all sides that would match to the side and multiply by 2
Although I will not give an explanation, your answer is...
a = -6
A college student is looking at her monthly checking account records. On September 1, 2008, her checking account held a balance of $1,050. At the end of <span>March 2009, her checking account held a balance of $800. The monthly rate of change for the student’s checking account over the period September 1, 2008 through March 31, 2009 is </span><span>250/7. The answer is letter C.</span>
