At the city museum, child admission is $5.60 and adult admission is $9.30. On wednesday, 140 tickets were sold for a total sales of $994.90. How many adult tickets were sold that day?

Tommy buys a sweater that is on sale for 40% off the original price. the expression p -0.4p can be used to find the sale price of the sweater, where p is the original price of the sweater. if the original price of the sweater is 50, what is the sale price?