1) What is the slope of the line given in the table? y -1 -4 A 12 BO C) 1 D) 2 3 -2 7 O

2y= 3 2 x−2 y = − 1 3 x + 1 y=− 3 1 x+1

Ahiker stands at an unknown elevation before he ascends 2 miles up a mountain to an elevation of 9 miles. find the elevation of the hiker before his ascent.

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”?