A libary has 2000 books. there are 3 times as many non fiction books as fiction books. write and solve a system of equations to determine the number of nonfiction and fiction books.

Find the value of the discriminant. Then describe the number and type of roots for the equation. - x^2-12x+4=0

The difference of a number t and 7 is greater than 10 and less than 20

The value of the digit 2 in 5,426 is 20. In which number is the value of the digit 2 ten times greater?

Astronauts use stool in space that weighs 5 ounces on earth how many grams does the tool weigh round your answer to the nearest hundredth

The regular price of a tv is x dollars during a sale,$39 is subtracted from this price the sale price is $215

A toy store's percent of markup is 45%. a model train costs the store $50. find the markup. a. $72.50 b. $22.50 c. $27.50 d. $111.11

A herd of 49 horses has 19 white and some black horses. What is the ratio of black horses to all horses?

At most restaurants, the more food you order, the more money you have to pay. This is true whether you go to an overpriced "gourmet" restaurant where the plates are tiny but very expensive, or to a cafeteria where the portions are huge and the

What's the inequality of 4n-8<40

Fill in the blank to make the two fractions equivalent. 5/9 = / 36