What is the value of z in the equation 2z + 7 = -5?
a. -6
b. -1
c. 1
d. 6

What does the relationship between the mean and median reveal about the shape of the data

15m is what percent of 60m; 3m; 30m; 1.5 km? the last one is km not m

Select the correct answer. what is the exact value of sin (157.5°)? a. 'sqrt(2 - sqrt(2))/2 b. *"-"'sqrt(2 + sqrt(2))/29 c.'sqrt(2 + sqrt(2))/4" d. "-"sqrt(2 + sqrt(2))/4)