Of the 30 champions of the National Spelling Bee from 1974 to 2003, sixteen are boys. Find the ratio of the number of champions who are girls to the number who are boys.

The standard distance between studs in a house is 1.5 feet. if you have a set of blueprints for a house that mark every 1.5 feet with 2 in., by how many inches will a 13-foot wall be represented?

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Solve the equation below: (x+4)/6x=1/x a. x=2 b. x=0,2 c. x=-2 d. x=0,-2