Rate answer

                               (a)To find out how much soil is required for 1m2 take 100 / 4 = 25g
          (b) To find OUT HOW MUCH SOIL IS REQUIRED FOR 17M2 TAKE 25 * 17 = 425
              (C) The answer is 18m2  for this
one!
  I won’t be telling how I got the answer for C because C is easy!!!!!!!!!!!!!! :) OKAY! You can just put 17 + 1 = 18 or 450 / 25 = 18