Consider the function y = -2 - cos(x - pi). What effect does pi have on the basic graph?
O A. Horizontal shift right 7 units
B. Vertical stretch by factor 1
C. Vertical shift down 7 units
D. Horizontal shift left 7 units

In a certain city, the hourly wage of workers on temporary employment contracts is normally distributed. the mean is $15 and the standard deviation is $3. what percentage of temporary workers earn less than $12 per hour? a. 6% b. 16% c. 26% d. 36%