Lori owns a carsharing company. There are three red cars and two white cars available to rent. Renting the white car costs $2 for every minute and the red car $3 for every minute. All cars were rented for 3 hours. How much money did Lori earn?
Both white cars were rented for 2 * 2 = $
<gadget id="calculator">2*2</gadget>
<output>4</output>
4 for every minute.
All three red cars were rented for 3 * 3 = $
<gadget id="calculator">3*3</gadget>
<output>9</output>
9 for every minute.
So all Lori's cars were rented for 4 + 9 = $
<gadget id="calculator">4+9</gadget>
<output>13</output>
13 for every minute.
Three hours are 180 minutes, so Lori earned 13 * 180 = $
<gadget id="calculator">13*180</gadget>
<output>2_340</output>
2340 for renting all the cars.

<result>2_340</result>