Which comparison is not correct?

-7 > - 9

-2 < - 9

8 > - 9

-8 < - 4

Tien is making 5-letter security codes using only the letters M, N, P, Q, and R. She arranges the letters in a different order for each code, using every letter exactly once within each code. How many different codes can she make?

Solve this system by rewriting the statements into a set of 2 equations, then solve the equations using the addition method. The sum of two numbers is 8. The difference between the two numbers is 2. What are the two numbers?

Which description matches the transformations y=cos x undergoes to produce y=-2cos3x? A. horizontal compression by factor 3, vertical stretch by factor 2, then reflection across the x-axis. B.

Guido and raoul each went backpacking in glacier national park. the expressions 4 (d+2) - 2d and 3 (2+d) represent the respective distances guido and raoul hiked each day. on what day number d will their distance hiking be the same?

60 millimeters of strawberry juice 400 millimeters of pineapple juice 2 liters of apple juice Kim made 4 batches of this fruit punch recipe how many liters of fruit punch did she make

Simplify by combining like terms - 5x-13+7y+26x

A set of middle school student heights are normally distributed with a mean of 150 centimeters and a standard deviation of 20 centimeters. Uma is a middle school student with a height of 165 centimeters.

A parking garage has 6 levels. Each level has 15 rows. Each row has the same number as parking spaces. There are 2,250 parking spaces in all. How many parking spaces are in each row?

When a photo is reduced or enlarged its length to width radio usually remains the same. Aurelia wants to enlarge a 4-inch by 6-inch photo so that it has a wider of 15 inches. Use a ratio table to determine the new length of the photo.

An architect is designing a building on a triangular plot of land. If the base of the triangle is 100.8 feet and the height is 96.3 feet, find the available floor area of the building. Show all of your work