Write the sentence as a proportion.4 tbsp of cocoa mix is to 3.5 cups of cocoa as 28 tbsp of cocoa mix is to 24.5 cups of cocoa.
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Answer: D
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Simplify the factorial expression.
A. 
B. 
C. 
D. 
Solve.The formula for the area of a trapezoid is A = 
(b + B)h. Solve the formula for h. Use this formula to find the height of the trapezoid if the area, A, is 50 square meters, and the bases, b and B, are 12 meters and 13 meters.
A. h = 4 meters
B. h = 37
meters
C. h = 156 meters
D. h = 12
meters
Solve the polynomial equation by factoring.x3 - 3x2 - 4x + 12 = 0
A. 2, 3, -2 B. 3, 4, -2 C. -3, -4, 2 D. -2, -3, 0
Identify the following as an experiment or an observational study.A researcher obtained a random sample of women with children and a random sample of women without children and compared the rates of clinical depression in the two groups.
A. Observational study B. Experiment