For a certain state, the number of possibilities for license plates is X. The number of license plates with no characters repeated is Y. How many license plates do have at least one character repeated?

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?

Ateacher wanted to buy a chair, a bookshelf, two tables and a desk. she spent $900 for all five items and the chair and the desk combined 70% of her total. if the bookshelf cost $50, how much did each of the tables cost?