Un centro comercial tiene varias formas de pago: con tarjeta de crédito de cuatro bancos diferentes, tarjeta de débito de las mismas compañías
bancarias, vales de despensa de tres empresas diferentes ó con efectivo.
¿Cuántas formas diferentes hay para pagar un mismo producto?

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?

What is the measure of one interior angle of a pentagon

Ahmed plans to add a rectangular sunroom to his house. the sunroom will have a length of 14 feet and a width of 10 feet, and the construction will cost $40 per square foot. how much more would the sunroom cost if it’s width were increased to 12 feet?