The distance traveled by a falling object is directly proportional to the square of the time it takes to fall that far. if the object falls 100 feet in 2.5 seconds, how far does it fall in 5 seconds?

List the elements of the set in roster notation. (enter empty or ∅ for the empty set.) {x | x is a letter in the word hippopotamus}

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

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?