Final answer:
The rate of $1,500,000 lottery winnings paid over 15 years can be written as $100,000 per year.
Step-by-step explanation:
To write the rate as a unit rate, we need to divide the total amount by the number of years it is paid over. In this case, the total amount is $1,500,000 and it is paid over 15 years. So, the unit rate would be $100,000 per year ($1,500,000/$15). Therefore, the rate is $100,000/yr.
Learn more about Writing rates as unit rates