To get the 10% discount, a shopper must spend more than $400. Use d to represent the spending (in dollars) of a shopper who gets the discount.

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

The measure of one angle of an octagon is two times smaller that of the other seven angles. what is the measure of each angle?

Se tiene en una caja de canicas 10, 4 blancas y 6 negras ¿cual es la probabilidad que en 2 extracciones con reemplazo sean blancas? ¿cual es la probalidad que en 2 extracciones sin reemplazo sean negras?