Today, the price of a new cell phone is $129.In 200,the price of a similar cell phone was $240.What is the percent of change in the price of a cell phone from 2000 to today?

Agreeting card company can produce a box of cards for $7.50. if the initial investment by the company was $50,000, how many boxes of cards must be produced before the average cost per box falls to $10.50?

If the wwight of a package is multiplied by 7/10 the result is 65.8 find the weight of the package

Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares