Suppose y varies directly as x. To solve you will need to find the constant of the variation, write the equation so you can answer the question. If y = 4 when x = 2,
find y when x = 16.*

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*

According to the 2008 u.s. census, california had a population of approximately 4 × 10^7 people and florida had a population of approximately 2 × 10^7 people. which of the following is true? a. the population of california was approximately two times the population of florida. b. the population of florida was approximately twenty times the population of california. c. the population of florida was approximately two times the population of california. d. the population of california was approximately twenty times the population of florida.

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?