Step-by-step explanation:
A.
=
two ratios are equal and form a proportion.
Answer:
350 gallons
100/19.4 = 5.15463917526
Multiply this by 67.9 gallons used for cooking = 350 gallons of water a day per family
d ≤3
9−4d≥−3
Subtract 9 from each side
9-9−4d≥−3-9
−4d≥−12
Divide by -4, remembering to flip the inequality
-4d/-4 ≤-12/-4
8 ft i think there is't much context to go off of though
With replacement
Without replacement
