25 students average 84 on a test. another group of 20 students averages 66. find the overall average.

Which ordered pair is a solution of the system? x + 4y = 19 y = - 2x - 4 A. (3,4) B. (7,3) C. (-5,6) D. (-2,0)

A Physician orders acetaminophen elixir 6mg/kg/dose for a child who weighs 65 lbs. How many mg will the child receive per dose? (Round to the tenths).

As you progress in the study of algebra, you go from performing arithmetic operations on numbers to working with unknown values represented by variables. When relationships have two variables, you see them represented on graphs with two axes.

Is y=-9x a direct variation?

After Ricardo received his allowance for the week he went to the mall with some friends he spent half of his allowance on anew paperback book the he brought himself a snack $1.25 when he arrived home he had $5.00 left how muchwas his allowance

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