What is 21 decreased by 25%

Jackpot three binders from the store and paid 13.17 if he goes back to the store to purchase five more binders how much in total we have spent on binders

Find the domain for which the functions f (x) = 2x2 - 1 and g (x) = 1 - 3x are equal.

What is the greatest common factor for 200 and 205

Every 60 minutes the world population increases by 100,000 people. How many people will be born in the next 480 minutes?

4 friends share 3 oranges equally. How much does each friend get?

Given the explicit formula for an srithmetic sequence find the first five terms and the 52nd term

Negative three plus x equals eleven

A rectangular room has a length of 20 ft, width of 48 ft, and height of 10 ft. Use the Pythagorean Theorem to find length BC and length AB. Round to the nearest tenth, if necessary.

The Hu family goes out for lunch, and the price of the meal is $58. The sales tax on the meal is 7%, and the family also leaves a 15% tip on the pre-tax amount. What is the total cost of the meal?

Suppose the university bursar said that 600 students entered for Business Mathematics, 300 entered for Statistics while 173 students entered for both Business Mathematics and Statistics. How many students enrolled in the two courses altogether?