At the movie theater, child admission is $5.30 and adult admission is $8.60. on monday, three times as many adult tickets as child tickets were sold, for a total sales of $870.80. how many child tickets were sold that day?

Sam makes his sales calls according to a pattern. he travels either north or south depending on the calendar. some of his past trips were as follows: on february 17, april 24, june 10, september 19, and november 3 he drove north. on february 28, may 25, august 22, november 20, and december 18, he drove south. describe sams' pattern. in which direction will sam drive on oct4 and oct 24?

How many quarts of a 50% solution of acid must be added to 20 quarts of a 20% solution of acid in order to get a 40% solution of acid?

Simplify each expression. use positive exponents. show work . (x –2 y –4 x 3 ) –2