Arrange the order of the following integers 4, -2, -5, 0, 2 -1 from least to greatest.
a. 4, -2, -5, 0, 2 -1
b. -5, -2, -1, 0, 2, 4
c. 4, 2, 0, -1, -2, -5
d. 0, -1, -2, -5, 2, 4


There are 35 students in art class and 57 students in dance class and 12 students are enrolled in both activities. Find the number of students who are either in art class or in dance class.

a. 35
b. 57
c. 80
d. 92