jasper wants to join a video store, blockbuster offers $9.99 for one year. with the discount card, each video rental costs $2.49. a discount card frm video time costs $20.49 for 1 year. with the video time discount card, each vido rental costs $1.79.

a) after hw many video rentals is the membership costs the same?
b) what is the cost when they are equal