The ratio of the prices of two books was 16:23. Two years later when the price of the first has increased by 10% and that of the second by Rs.477, the ratio of the prices becomes
11:20. Find the original process of the two books.

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

Complete the solution of the equation. find the value of y when x equals to 1 9x-5y=29

You are choosing between two health clubs. club a offers membership for a fee of $ 28 plus a monthly fee of $ 20. club b offers membership for a fee of $ 20 plus a monthly fee of $ 22. after how many months will the total cost of each health club be the same? what will be the total cost for each club? in __ months the total cost of each health club will be the same.