Solve.If y varies directly as x, and y = 3 when x = 8, find y when x = 40.
A. 15
B. 
C. 
D. 
Answer: A
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Which type of rubric assigns scores to various different aspects of a student’s work?
a. Conceptual b. Procedural c. Holistic d. Analytic
Find the x- and y-intercepts of the graph of the given equation, if they exist. Then graph the equation.y = 7
A. x: 7; y: none
B. x: none; y: 7
C. x: 7; y: none
D. x: none; y: 7
Solve the problem.How many liters of a 20% alcohol solution must be mixed with 60 liters of a 90% solution to get a 50% solution?
A. 80 L B. 140 L C. 8 L D. 14 L
Solve the problem.A wheel with a 21-inch diameter is turning at the rate of 30 revolutions per minute. To the nearest inch per minute, what is the linear speed of a point on the rim?
A. 2025 in. per min B. 2032 in. per min C. 1979 in. per min D. 1986 in. per min