The average would be -3. You add all the low temps up and get -15 then you divide it by the amount which was 5 temps... And get -3.
Subtract 45 on each side so it would be
0.15X=104 then divide both sides by 0.15X
then X= 700
90 x 7 = 630 square feet total
0.5 fluid ounce per sq ft
630 x 0.5 = 315 fluid ounces are needed
The perimeter of the triangular end is 12 m, so the total rectangular area is
.. (12 m)*(8 m) = 96 m^2
There are two triangles with base 3 m and height 4 m, so their total area is
.. (3 m)*(4 m) = 12 m^2
The surface area of the figure is the sum of these
.. 96 m^2 +12 m^2 = 108 m^2
