Use a truth table to determine whether the statement is a tautology, a self-contradiction, or neither.~p ? (~p ? ~q)
A. Self-contradiction
B. Tautology
C. Neither
Answer: B
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Six different decorators have to paint 6 rooms and put a wallpaper border around each room at the ceiling. One gallon of paint covers 400 sq ft and one roll of border contains five yards. The decorators are trying to save money, so they each would like to use one gallon of paint and three rolls of border. The list gives the name of each decorator and the size of the room. 
Give the names of the decorators who will not have enough paint, but will have enough border for their rooms. (Assume a ceiling height of 8' for each room.)
A. Irina, Sun Woo B. Mary, Sam C. Rosa, Manuel D. None
Solve the equation.
= 9
A. 
B. ?
C. 
D. 
Provide an appropriate response.Solve the following system of equations using the addition method: a + b = 1.5 a - b = 0.7
Fill in the blank(s) with the appropriate word(s).
Find an equation for the circle.Center at (2, -3), radius of length 
A. (x + 2)2 + (y - 3)2 = 
B. (x - 2)2 + (y - 3)2 = 
C. (x - 2)2 + (y + 3)2 = 
D. (x + 2)2 - (y + 3)2 = 4