Answer:
correct answer is 10
Step-by-step explanation:
a1 = 10 correct
a2 = 10+10 = 20
a3 =20+10 = 30..
Remaining water in the tank is (19/2-19/3) gallons = 57-38/6=19/6 =3 1/6 gallons
So,
"six feet less than"
- 6
"the width"
w
w - 6
"six feet less than the width (w)"
w - 6