Solve the problem.Bert is 16.5 kilometers away from Brenda. Both begin to walk toward each other at the same time. Bert walks at 3 kilometers per hour. They meet in 3 hours. How fast is Brenda walking?
A. 3 kilometers per hour
B. 3.5 kilometers per hour
C. 4.5 kilometers per hour
D. 2.5 kilometers per hour
Answer: D
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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 problem.Suppose that the velocity of a falling body is v = ks2 (k a constant) at the instant the body has fallen s meters from its starting point. Find the body's acceleration as a function of s.
A. a = 2k2s3 B. a = 2ks2 C. a = 2ks3 D. a = 2ks
Find the equations of the system shown on the graphing calculator screen.10
-10
A. y = 2x + 1 y = -0.3x - 5.9 B. x + y = 1 x - 3y = -9 C. 2x + y = 1 5x - y = 20 D. 5x + y = 20 2x - y = 1
Simplify. Write your answers in the form of a+bi, where a and b are real numbers.(3 + 2i)(9 + 3i)
A. 6i2 + 27i + 27 B. 21 - 27i C. 21 + 27i D. 33 + 9i