Find the best buy and give the unit price.Brand X 4 oz for $0.32Brand Y 6 oz for $0.54
A. Brand Y, $0.9
B. Brand X, $0.8
C. Equal value
D. Brand Y, $0.8
Answer: B
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The figure shows the velocity v or position s of a body moving along a coordinate line as a function of time t . Use the figure to answer the question. s (m)
What is the body's velocity when t = 6 sec?
A. -2 m/sec B. 1 m/sec C. 3 m/sec D. 2 m/sec
Graph the equation.-8y + 1 = 17
A. 
B. 
C. 
D. 
Simplify.
÷ 
A. 
B. 
C. 
D. 
Solve the problem.The expression 0.60(226 - a - r) + r is used to obtain the target heart rate for a cardiovascular workout for a nonathletic female with age a and resting heart rate r. The accompanying table shows the target heart rate for a 19-year-old nonathletic female for various resting heart rates. Find the missing entries. 
A. 155; 157.4 B. 154.6; 158.6 C. 153.8; 156.6 D. 154.2; 158.2