There are 85 books, a librarian takes four and leaves the rest. Jerry can fit nine books on a shelf, how many shelves will he need?

You invested in a CD that gets a simple interest of 1.7% each year. You placed $3000 in the CD and left it for 4 years. How much interest did you make?

Bo has 23 video games for sale. He plans to donate the money he makes from each sale to a local charity. What is the least amount of money in whole dollars Bo should charge for each game in order to raise $100? Explain

What is x if x/5 = -9

Given y = f (u) and u = g (x), find dy/dx = f' (g (x)) g' (x).

Write the equation of the line: Passing through (-2,7), having slope - 4 over 9

What would be the expression after distributing, 4 (x+7) ?

The shoe store is having a sale. All items are 30% off the regular price, and the store will pay 1/2 of the sales tax. Sales tax is 8%. How much would you pay for pair of shoes, if the regular price is $50.00?

If there are four boys and two girls in a family what is the ratio of boys in the family to children in the family

What is the quotient of 40,561 divided by 47 (in steps)

Is the lcm of a pair of numbers ever equal to one of the numbers? explain with an example