Como se saca el porcentaje

A 20 percent discount is offered on all sweaters at Store S. If a cotton sweater is on sale for $48, and a wool sweater is on sale for $64, what was the difference in the price of the sweater before the discount

Which are solutions of the equation 4x2 - 7x = 3x + 24? Check all that apply.

Paul and Tom both commute to work. Paul's commute on the train takes 15 minutes more than one third as many minutes as Tom's commute by car. It takes Paul 45 minutes to get to work.

Maple grove wants to include two types of maple trees, the namesake of the city, for their parks. Two varieties of maple trees have been selected. One variety costs $75 per tree; the other more colorful variety costs $90 per tree.

If the duck traveled 97.8 miles at top speed in 1.5 hours how far did it travel in one hour?

Analyze the graph. Which inequality represents the graph? y > x + 4 y - 3x + 4 y < - 3x + 4

If x = 2 calculate the value of x squared - x

Are 5/y² + 2 and 1 - 5/y² + 2y not quadratic expressions? Why?

Which expression is equivalent to 12x + 18y + 54?

Mr. Morris likes to watch the Packers play football There are 16 football games a season and each game lasts for about 3 hours how many hours is mr. Moore spend watching the Packers for the whole season