Since 300 is 100%, you treat it as such.
300/(100/70) = 210 (rounded)
You do a similar thing for 600
1/4 of 100 is 25
100/25 = 4
600 / 4 = 150
70% of 300 is more.
All in all you would get the answer x+y=1.
12 inches is the answer im sure
Answer: 24x - 2
Step-by-step explanation: 7x -2 + 10x + x + 6x
24x -2
You will need to draw the shape of the circular pool and measure it until you reach the 50ft
