There are 3 adult leaders since 18-3 = 15 then 15/5= 3
Let's write the total of gallons in improper fraction:
Step 1: Multiply the denominator by the whole number
6 × 5 = 30
Step 2: Add the answer from Step 1 to the numerator
30 + 1 = 31
Step 3: Write answer from Step 2 over the denominator
5 1/6 = 31 / 6
Let's divide the total gallons by what she used each hour to get the number of hours:

Let convert the improper fraction to mixed number:
93/10 = 9 3/10
<h2>She was driven a total of 9 3/10 hours</h2>
Yes they can because the two smaller numbers add up to be more than the bigger number
The answer would probably 22.7. 18 is a perfect square, -10/5 is -2 and -13.4 is a regular decimal