An airplane is flying at an altitude of 30000 feet

If 8x + 8y = 4 and 4x + 2y = 12, what is the value of x? A) - 5 B) - 11 2 C) 5 D) 11 2

Is (6,-5) a solution to the following system 9x+13y=2-3x-5y=2

A scientific law will change in time describes an observation is based on opinions and beliefs can be overturned if scientists vote to

Simplify 9 to the second power over 9 to the seventh power.

Karens batting average was 0.444. She was at bat 45 times. How many hits did she get?

How many times greater is the product 4x300 than the product 4x30?

A hemispherical dome with radius=20 feet needs 11 coats of paint, which are 1/100 inch thick ... need to use linear approximation to get the volume of paint needed for the job.

Marcus has 731 books he puts about the same number of books on each of nine shelves in his bookcase about how many books are on each Shelf

What is the Greatest common factor of 8,27,35

What is the slope of the line passing through - 7,-2 and 4,1