Factor the expression 16a^2 - 81

The information in the table is the result of a survey rating the food in the school cafeteria. table If 1,200 students participated in the survey, how many rated the cafeteria food "poor"? 200 students 300 students 400 students 600 students

The perimeter of a rectangular sports court is 134 feet. After a game, a player's coach estimates that the athlete has run a total of 378 feet, which is equivalent to four times the court's length plus nine times its width.

A suitcase measures 24 inches long and the diagonal is 30 inches long. How much material is needed to cover one side of the suitcase?

One root of f (x) = x3+x2-22x-40 is 5. if 5 is a root of the function, then what is a factor

Cindy bought 5 dresses for $20 each and 3 pairs of shoes for $20 each. She used this expression to calculate the total amount she spent.

Find the x - and y - intercept of the graph of the equation 3x + 4y = 24

Emma and her friends arrive in Langdale and decided to go for a coffee the owner of the cafe is giving a free cupcake to every 4th customers Emma is the 17th customer will she receive a free cupcake?

Find the accumulated value of an investment of $13,180 for 6 years at an annual interest rate of 2.3% if the money is: a) compounded semiannually b) compounded monthly c) compounded quarterly d) compounded continuously

If a car travels 640 miles in 11 hours, what is the average rate (speed) of the car? A) 0.017 mph B) 17.12 mph C) 58.18 mph D) 62.9 mph

On a coordinate plane, an exponential function approaches y = 0 in quadrant 2 and curves up and increases in quadrant 1. What are the domain and range of the function on the graph? The domain includes all integers, and the range is y ≥ 0.