1). The admission fee at an amusement park is $1.50 for children and $4.00 for adults. On a certain day,2,800people entered the park, and the admission fees that were collected totaled$5,950. How many children and how many adults were admitted?

2). A gas station sells regular gas for $2.15per gallon and premium gas for $2.85a gallon. At the end of a business day300gallonsof gas had been sold, and receipts totaled $708. How many gallons of each type of gas had been sold?

3). A fruit stand sells two varieties of strawberries: standard and deluxe. A box of standard strawberries sells for $3, and a box of deluxe strawberries sells for $8. In one day the stand sold120boxesof strawberries for a total of $610. How many boxes of each type were sold?