18 out of 20 is what percentage

What are some number that have an absolute value greater that 2 1/2

Adding and subtracting polynomials (11 + 3x ^ 3) + (4x ^ 2 - 2) + 3x

What is 0.11 has a fraction

in a contest, each finalist must answer 4 questions correctly. each question is worth twice as much as the question before it. the fourth question is worth 2,000. how much was the first question worth?

Identify the vertex for y=2x square - 4x-2

A ball is thrown directly upward from an initial height of 200 feet with an initial velocity of 96 feet per second. How long does it take for the ball to reach it's maximum height?

Carole has $53.95 and washes cars for $8 each. Carole wants to attend a musical that costs $145.75. a. Write and solve an inequality to determine the minimum number of cars Carole must wash to be able to buy the ticket to the musical. b.

5. Given beverage sales of $5,400 and cost of beverages sold of $900.00, the beverage cost percent is:

Paul Woonan, a self employed accountant, is married and enrolls in a non-group health insurance plan. The plan costs $7,710 per year for the family coverage. What will he pay each month in premiums?

At a movie rental machine the movies rent for $3.00 expect on Tuesday when they rent for $0.49. Approximately what percent of the regular cost