An item is regularly priced at $30. It is on sale for 20% off the regular price. How much in dollars) is discounted from the regular price?

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers

Solve each quadratic equation by factoring and using the zero product property. 14x - 49 = x^2

Two corresponding sides of two similar triangles are 3cm and 5cm. the area of the first triangle is 12cm2. what is the area of the second triangle?