The average of your first three test grades is 78. what grade must you get on your fourth and final test to make your average 80?

Classify each system of equations as having a single solution, no solution, or infinite solutions. y=11 - 2x and 4x - y=7 x=12 - 3y and 3x + 9y = 24 2x + y=7 and - 6x=3y - 21 x + y=15 and 2x - y=15 2x + y = 7 and - 4x=2y + 14 x + 4y=6 and 2x=12 - 8y

Identify the sampling method. You want to find how many students use public transportation. You interview every fifth teenager you see exiting a movie theater.

If on a scale drawing 35' are represented by 25" then and scale of 1/8 inch represents how many feet

Solve one of the equations below. You must show your work. Tell whether it has one solution, an infinite number of solutions, or no solutions. (a) 6x + 4x - 6 = 24 + 9x (b) 25 - 4x = 15 - 3x + 10 - x (c) 4x + 8 = 2x + 7 + 2x - 20

The difference of 10 and u in algebriac expression

Simplify 659/8. What is the answer rounded to the nearest whole number?

Rebecca downloaded four times as many songs as Nigel. If X represents the number of songs downloaded by Nigel, write an expression for the number of songs downloaded by Rebecca.

What is 1054.2 divided by 1.5

Too Tall Tower has office space below the 57th floor and condominiums above. Too Tall Tower is an example of a

How would you classify the number 125? A. perfect square B. perfect cube C. both a perfect square and a perfect cube D. neither a perfect square nor a perfect cube