Answer:
The Largest Number is 27.
Step-by-step explanation:
Range = Largest Number - Smallest Number
18 = Largest Number - 9
Rearrange the formula to find the Largest Number:
Largest Number = Range + Smallest Number
Largest Number = 18 + 9
Largest Number = 27
You can check this by putting it into the original formula:
Range = Largest Number - Smallest Number
18 = 27 - 9