You have 26 library books. You return some books. Then you take out 15 more books. Now you have 27 books. How many books did you return? Solve any way you choose. Show your work.

A laptop has a listed price of $683.99 before tax. If the sales tax rate is 6.25% , find the total cost of the laptop with sales tax included. Round your answer to the nearest cent, as necessary.

The st. joe company grows pine trees and the average annual increase in tree diameter is 3.1 inches with a standard deviation of 0.5 inch. a random sample of n = 50 trees is collected. what is the probability of the sample mean being less the 2.

59 blue jays 68 crows 12 robins 1 cardinal ... what is the probabilty of a blue jay being the next bird he sees

The sides of a triangle are in the ratio 3:4:5. What is the length of each side if the perimeter of the triangle is 36 cm.?

If you have $13 and spend $4 on a sandwich, drink and chips, what fraction of your money did you spend?

What is 363 feet below sea level?

What is the prime factorization of 14 in expanded form

If the quiz mark was from 20 and I want to make it 15 what I do

If the perimeter of the regular hexagon shown above is 78 centimeters, what is the length of each side? A. 11.1 centimeters B. 13 centimeters C. 9.8 centimeters D. 15.6 centimeters

Whats evaluate each expression? Pre-algebra