Assume that the variables x and y are directly related. if k = 8, what is the value for each of the following points? be sure and record your data to be used in the following problem.

x y k
0.

What expression is equivalent to (2x-1)(x-3)?

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?