$2703.75
Why? Because...
you count all the squares one by one and then you multiply all the squares by 52.50 because that's how much one square cost
Or you can split the playground up into 3 shapes; a rectangle and 2 triangles
The rectangle is 4 by 11 feet
Triangle 1 is 2 by 3 feet
Triangle 2 is 3 by 3 feet
The formula for a rectangle is base × (times) height
so...
4x11=44
The formula for a triangle is
so for Triangle 1...
its area is 3
and for Triangle 2...
its area is 4.5
The area of the playground is
44+3+4.5=51.5
because each square costs $52.50 you have to multiply each square by 52.50
51.5x52.50=2703.75