A movie theater has two rooms. Room A has 5 rows of 11 seats in each row. Room B has twice as many as room A. How many seats are there in room B? Show work.

The function f is defined by f (x) = 2x^2-4. Find f (-x)

4/7 of students at a school are boys. If there are 2723 students at the school, how many are girls?

What is 3/4 times to the negative 2nd power?

Evaluate the expression for s=11 and v=8

Julie's city had a parade last weekend. Of the residents in Julie's city, 90,000 came to the parade and 10,000 did not. What percentage of the residents of Julie's city came to the parade? Write your answer using a percent sign (%).

Simplify the ratio 40 : 28

The guide on a tour bus is giving a lecture to the 72 passengers about the historical sites they are passing. The passengers consist of 30men and 35 women, and the rest are children.

Which choice is the simple formula for the nth term of the following arithmetic sequence? 6, 2, - 2, - 6, - 10, ... A. 5n + 4 B. 4n + 10 C. 4n + 1 D. - 4n + 10 E. - 4n + 1

listening station A and listening station B are located at (3300, 0) and (-3300, 0), respectively. Station A detects an explosion 4 seconds before station B. (Assume the coordinate system is measured in feet and sound travels at 1100 feet per second.

Mary buys last year's best-selling novel, in hardcover, for $18.00. This is with a 25% discount from the original price. What was the original price of the novel?