If (8)x2 = 128, then x is __________.
A. either a positive or negative number
B. a negative number
C. a prime number
D. a positive number

In the diagram, the straight line is divided by one angled line at 120°. Solve for the value of x.
A. 60°
B. 90°
C. 120°
D. 180°
An artist sold 4 of his paintings. These represented 0.05 of all the artwork he had done.
How many paintings had he made at that point?
A. 100
B. 80
C. 50
D. 20
An architect designs two walls of a museum to meet at an angle of 120 degrees.
What is an angle of this size called?
A. acute
B. obtuse
C. right
D. straight
What is the number of square inches in the area of a circle whose diameter is 28 inches?
Use 22/7 for the value of π.
A. 616
B. 88
C. 44
D. 1,232