As it says in the question, a person that is 6 feet tall has a shadow that is 12 feet tall. You would find the length of the shadow of the 33 foot<span> tree</span> by multiplying 33 by 2, since 6 multiplied by 2 is 12, the length of the shadow, then multiplying 33 by 2 will give you a shadow of 66 feet.
So the length of the tree's shadow would be 66 feet tall
Take the amount of rows in the auditorium, 15, and multiply that by the number of new seats in each row, 3. You get 45. Now multiply the number of new seats, 45, by the cost of each seat, $74. You get $3,330.
