400 ÷ 3 = 133 1/3
So the perimeter of the 3 sides will be 133 + 133 + 134, making it 400
Total area = 133 x 134 = 17822 square feet
So the dimension is 133 by 134 feet
-1584.
multiply 42 times 42 the subtract that from 180
8 + 0.4 + 0.07 + 0.008 is your answer. But all you had to do is separate your numbers with working on the biggest number to the smallest number.
This is a simple conversion. 1 gram equals .0022 lbs, meaning this is what you have to do: 58g*(.0022lbs/1g). The grams cancel out, and you're left with pounds.
I can't really tell which is underlined, but if it's the first '8' it should round to 9,000...?
Second 8: 800