Evaluate the expression when x = 2, y = 1, and z = 4.2z2
A. 16
B. 18
C. 12
D. 32
Answer: D
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Evaluate the algebraic expression for the given values of the variables.8 + x ÷ 1 + y, for x = 3, y = 10
A. 13 B. 12 C. 21 D. 20
Find an equation of variation in which the following are true.y varies jointly as x and w and inversely as z, and y = 
when x = 2, w = 6, and z = 60.
A. y = 4xwz
B. y = 
C. y = 
D. y = 
Provide an appropriate response.True or false?: When graphing an inequality, a test point must lie on the boundary line.
A. True B. False
The bar graph shows the expenditures of one city government in a recent year. 
Name the agency with the smallest spending and estimate this value.
A. Environment; $3.2 million B. All Other Agencies; $8.2 million C. Human Resources; $24.2 million D. Health; $5.4 million