Is - 5 an irrational number?

What number is a common factor of 16 and 56

The area of circle b is 36 times greater than the area of circle a. the radius of circle b is 30. what is the radius of circle a?

Selecting an Instructor At a convention there are 7 mathematics instructors, 5 computer science instructors, 3 statistics instructors, and 4 science instructors.

Which expression can be used to find 75% of 60?

8/10 and 4/5 determine whetther each pair of ratios form a proportion

if your answer is "No," how much more lacquer does she need? if your answer is "yes," how much lacquer will she have left over? show your work to justify your answer.

4m=9m-20 equals what

In a survey conducted by a union, members were asked to rate the importance of the following issues: (1) job security, (2) increased fringe benefits, and (3) improved working conditions. Five different responses were allowed for each issue.

If f (3) = 5 and f (4) = 8 what does f (5) = and f (6) =

Find the equation of the parabola with the vertex at (0,0) and the focus at (-1,0).