What is a triangular number?

150 minutes per day = hours per week

Ben's $1,000.00 bond earns 7.5% in annual interest. What is the annual interest?

Simplify 2/3 (9x - 6) A) 3x - 2 B) 6x - 4 C) 12x - 8 D) 18x - 12

In 2010 the Internal Revenue Service allowed a $5,150 deduction for each dependent. In 2005 it was a $3,200. If a family has five dependents, what is the allowed deduction in 2010?

At a movie store, erin pays a monthly fee and is charged for each movie she rents. The table shows the monthly cost when Erin rents different numbers of movies. What is the monthly fee and the cost of a movie?

Two redwood trees are the same height. A third tree's height is x feet. The first tree is 50 feet more than three times the height of the third tree. The second tree is 100 feet taller than twice the height of the third tree.

Express 400 miles in 6 hours as a ratio

The owner of a video store has determined that the profits "P" of the store are approximately given by P (x) = - x^ (2) + 30x+76, where x is the number of videos rented daily.

Harold stores 10,656 pounds of grain for his 24 cattle. Each cow eats about 12 poinds of grain each day. How many days would the food supply last?

What is 91.80 divided by 4?