During the month of January the temperature was 5 degrees Fahrenheit one morning. It rose all the way up to 17 degrees Fahrenheit in the afternoon. What was the percent change?

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

Is the response to the survey question "did you smoke in the last week question mark "response to the survey question "did you smoke in the last week? " a discrete random variable, a continuous random variable, or not a random variable?

As a self-employed seamstress, you know that it takes 7 yards of material to make 3 jackets. you bought 15 yards of material to make 7 jackets. did you buy enough material? if not, how much were you over or under?