(50 points! ) jessica purchased a dvd that was on sale for 12% off. the sales tax in her county is 3%. let y represent the original price of the dvd. write an expression that can be used to determine the final cost of the dvd.

Missy took the act and was told her standard score (z-score) is –1. frank took the sat and was told his standard score (z-score) is –2. which student has a better chance of getting admitted to college based on their test score?

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

Which of the following represents the factorization of the trinomial below? x^2+7x-30