Ryan runs 1.5 miles on his first day of training for a road race. The next day he increases his distance run by 0.3 miles. The day after that increases the distance run by another 0.3 miles and so on

6.9 miles  

Step-by-step explanation:

Step 1: Multiply 0.3 miles to 18 days

Step 2: Add the result to 1.5

Therefore, in the course of 18 days, Ryan will run 6.9 miles.

Question: Ryan runs 1.5 miles on his first day of training for a road race. The next day he increases his distance run by 0.3 miles. The day after that increases the distance run by another 0.3 miles and so on. What is the total number of miles Ryan runs over the course of 18 days?