Final answer:
Darrell has sold 80% of his tickets, which is calculated by dividing the number of tickets he sold (16) by the total number of tickets given to sell (20) and then multiplying by 100.
Step-by-step explanation:
The question asks for the percentage of tickets Darrell has sold out of the total he was given to sell for the Marshall Middle School spring fair. To calculate the percentage, we divide the number of tickets sold (16) by the total number given to sell (20) and then multiply the result by 100. The calculation is as follows:
(16 tickets sold / 20 tickets total) * 100 = 80%
Therefore, Darrell has sold 80% of his tickets.