I think for this one, B seems the most right :)
Answer:
A ≈ 1194.5
The total surface area is 1194.53.
a = 24
b = 30
c = 7
h = 18
To find the length of a side of a square fins the square root of the area.
Area = 200 cm^2
Side = √200
Side = 10√2 (Exact length)
or 14.142 cm's ( round the decimal answer as needed.)
Answer: $24.50
Post office:£1 = $1.27
£350 = $1.27 × 350 = $444.50
Bank:£1 = $1.34
£350 = $1.34 × 350 = $469
Therefore, the difference will be:
= $469 - $444.50
= $24.50