Given, the density of a particular brand of gasoline = 0.737 g/ml.
13.4 gallon of tank given. We have to find the mass of gasoline to fill the tank.
First we will convert 13.4 gallon to ml.
We know that 1 gallon = 3.78541 litre
And 1 litre = 1000 ml
So we can write 1 gallon =
= 3785.41 ml.
13.4 gallon =
ml = 50724.494 ml.
Let's take there is x grams of gasoline
We know that density = (mass/ volume) = 
So we can write,

To find x we will multiply both sides by 50724.494. we will get,



So we have got the required answer.
Mass of gasoline = 37383.95 grams.
Twelve and three hundred seveny-five
4/16 do not receive treatment
which is 25%
25% do not receive treatment
There are 604800 seconds in a week
Since the distance around, or circumference, is 9, 622 ft. you need to use the formula for circumference to find the answer.
So...
9,622=

×diameter
9,622÷

= diameter
diameter = <span>3062.77772486 feet</span>