Answer:
is shown in figure
area of semi-circle= 157.14
where,
350 gallons
Step-by-step explanation:
100/19.4 = 5.15463917526
Multiply this by 67.9 gallons used for cooking = 350 gallons of water a day per family
20+y2+y=32
y2+y-12=0
(y+4)(y-3)=0
y= -4 or 3
Answer: 500
