1. The area of a rectangular park is 3500 m² If its width is 50 m, then find the cost of its
fencing at the rate of 100 per metre.

$24,000

Explanation:

So, first, we must find the length so

3500/50 = 70

Now, we need to find the perimeter. Some might think we do 3500 x 100

But that means we’re filling the whole land with just fence. The only place you would fence is the perimeter. To find the perimeter you add up all the sides so

70 + 70 + 50 + 50 = 240

Then to find the costs

240 x 100 = $24,000

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well if u read the book you would know that she meant to