On a certain hot summer's day, 677 people used the public swimming pool. the daily prices are $ 1.50 for children and $ 2.00 for adults. the receipts for admission totaled $ 1188.00 .  how many children and how many adults swam at the public pool that day?

Cynthia takes her dog to the park every 2 days. she bathes her dog every 7 days. if she took her dog to the park and bathed him today, how long will it be until she does both on the same day again?

Areal estate agent earns $32,000 a year plus $1,000 for each apartment he sells. write an equation that shows the relationship between the number of apartments abe sells, n, and the total amount he earns in a year, e. what is the total amount abe would earn from selling 10 apartments in one year

How do i simply this expression (quadratic formula basis) on a ti-84 or normal calculator?