Betty has between $40$ and $50$ pennies that she wants to arrange in a rectangular array. She notices she can arrange the pennies in three different ways without any gaps or spaces. However, if Betty adds two more pennies to her collection, she can only arrange the pennies in one way without any gaps or spaces: a straight line. How many pennies does Betty have? Note: An $a \times b$ rectangle is considered the same as a $b \times a$ rectangle.
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there is error...,..................
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An $a \times b$ rectangle is considered the same as a $b \times a$ rectangle....
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6
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45 is the answer guys
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