Question:
At the city museum, child admission is $6.20 and adult
Last updated: 7/18/2022
![At the city museum, child admission is $6.20 and adult](https://media.kunduz.com/media/sug-question/raw/55866147-1658144378.861966.jpeg?h=512)
At the city museum, child admission is $6.20 and adult admission is $9.80. On Friday, twice as many adult tickets as child tickets were sold, for a total sales of $722.40. How many child tickets were sold that day?