since you want to find the square footage of the entire room, hence Home Depot costs $3.40 per square foot, you would clearly need to find the area. Basically find what 8.5 * 12.3 is and then multiply that number by 3.40. Once that is done, put a dollar sign on the answer and BOOM, you got it. :)
Line up the decimals on top of each other when doing the adding but still keep the numbers in the same order, it might look off and you should get 2.34.
The main floor has 26 rows of 29 seats each, that is 26*29 = 754 seats And in the balcony there is 8 rolls of 23 seats, that is 8*23 = 184 seats So the difference is 754 - 184 = 570 Then the main floor has 570 seat more than the balcony
