Which graph shows the solution set of x^2+9x+20/x^2-x-20 is greater than or equal to 0? Look at the picture below.

Aword processing program requires a 7- digit registration code made up of the digits 1,2,4,5,6,7 and 9 each number has to be used and no number can be used mor than once how many codes are possible

Abag contains 10 white golf balls and 6 striped golf balls. a golfer wants to add 112 golf balls to the bag. he wants the ratio of white to striped gold balls to remain the same. how many of each should he add?

The sum of 5consecutive even numbers is 100. what is the first number in this sequence?