1) The expression representing how many more college hats were sold than professional hats is
when , more college hats were sold
2) The equivalent expression to is . The explanation is found in the steps below
3) The length of one side of the square scrapbooking page will be
. The working is shown below.
1) According to the question, is the number of months hats were sold.
is the number of college hats sold in months
is the number of professional hats sold in months
Since when
the expression representing how many more college hats were sold than professional hats is
when the number of months hats were sold is , , and
more college hats were sold in months
2) To get the equivalent expression to , carry out the steps below
remove brackets
arrange like terms
simplify like terms
The answer is (D)
3) Let the length of one side of the square be
The perimeter will be
making the subject of the formula
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