In Fig. 6.28, find the value of x and y and then show that AB || CD.​

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).

Handsome jack is buying a pony made of diamonds. the price of the pony is p dollars, and jack also has to pay a 25% diamond pony tax. which of the following expressions could represent how much jack pays in total for the pony?