Find the best buy (based on cost per unit).Brand X: 20 oz for $1.60Brand Y: 16 oz for $0.96
A. Equal value
B. Brand Y
C. Not enough information
D. Brand X
Answer: B
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As part of a statistics project, a 6th grade teacher brings to class a container with 200 red marbles and 800 white marbles which are thoroughly mixed. To figure out how many marbles in the container are red without actually counting them all, a student randomly draws 150 marbles from the container. Of the 150 marbles drawn, 33 are red.The sampling method used in this example is called
A. random sampling, but not simple random sampling. B. quota sampling. C. stratified sampling. D. simple random sampling. E. none of these
Find fractional notation for the ratio. You need not simplify.In this rectangle, find the ratios of length to width and of width to length.
A. 
; 
B. 
; 
C. 
; 
D. 
; 
Simplify the radical.
A. 2
B. 4
C. 5
D. 10
Find the quotient and simplify, if possible.
A. 2x4y2
B. 2x2y
C. 28xy
D. 4x2y