Mrs. Johnson had three sheets of stickers. She gave 20 stickers from each sheet to students in her class and had 12 total stickers left. Write and solve an equation to find out how many stickers were originally on each sheet.

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years

You buy a veido game for $60 and the sales tax is 8% what is the total cost for the game including the sales tax

The function y= x - 4x+ 5 approximates the height, y, of a bird, and its horizontal distance, x, as it flies from one fence post to another. all distances are in feet. complete the square to find and interpret the extreme value (vertex). select two answers: one extreme value and one interpretation.