At the movie theatre, child admission is $5.50 and adult admission is $9.40. On Monday, four times as many adult tickets as child tickets were sold, for a total sales of $1379.20. How many child tickets were sold that day?

The difference of two numbers is 40. find the numbers if 0.3 parts of one number is equal to 37.5% of the other one.

Opposite angles in a parrellelogram are

Me its important ! marge runs an ice cream parlor. her speciality is triple chocolate sundaes.she can prepare 1 sundae every 2 minutes, and she earns $1.20 for each sundae she makes . if she just makes sundaes for a single shift of at most 4 hours and at least 2 hours , which function relates her earnings to the number of minutes she works?