Of the 220 tickets available for a school play, 45% have been sold. What is the number of tickets that have sold?

A. 99

B. 175

C. 489

D. 990

Ten times the square of a non-zero number is eqaul to ninety times the number

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?

Find all solutions for 2y - 4x =2 y = 2x + 1 site: socratic. org