If gasoline cost $3.39 per gallon and your tank holds 20.50 gallons, estimate the cost to fill up your tank.
What percentage of your tank can you fill up with
3 gallons of gas?

$69.50 for a full tank;

6.833% of a tank is 3 gallons of fuel.

Step-by-step explanation:

$3.39 * 20.5 = $69.495 -> $69.50

20.50 / 3.0 = 6.833%

15% chance.

step-by-step explanation:

3/10 times, the 5 year old will get a tablet. 5/10 times, the 13 yer old will get a tablet. multiply both fractions to get 15/100 times, both would have a tablet.