Which item(s) has the lowest unit price?
Item 1
An 8-ounce package of butter for $1.2
Item 2
An 18-ounce package of butter for $2.16
Item 3
A 4-ounce package of butter for $9.6
A. both Item 1 and Item 3
B. Item 3
C. Item 2
D. Item 1
E. all three items have equal unit prices
Answer: C
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Estimate the value of the quantity.The table gives dye concentrations for a cardiac-output determination. The amount of dye injected was 
Plot the data and connect the data points with a smooth curve. Find the area under the curve using rectangles. Use this area to estimate the cardiac output.
Dye concentration (mg/L)
Time (sec)
A. 6.3 L/min B. 285.7 L/min C. 12.6 L/min D. 0.1 L/min
Solve the equation. First simplify the expression by combining like terms.(y - 3) - (y + 2) = 8y
A. - 
B. - 
C. - 
D. - 5
Multiply.3(3)(y ? 10)
A. 90 B. 90y C. 190y D. 80y
Solve the problem. Round interest to the nearest percent and time to the nearest period.You buy a CD for $3000 that earns $51.44 in interest every 3 months. What is the annual yield on your investment?
A. 2% B. 5% C. 7% D. 3%