Answer:
Similarly, the width of the pool is W=w-4
a) The area of the pool is A = LW = (3w-4)(w-4)
b) if the total width is 10 feet, then that means w=10
A=(3w-4)(w-4)
A=(3*10-4)(10-4)
A=(30-4)(6)
A=26*6
A=156 ft^2
c) If the total width is 9 feet:
A=(3w-4)(w-4)
A=(3*9-4)(9-4)
A=(27-4)(5)
A=23*5
A=115 ft^2
Step-by-step explanation:
