If y varies directly as x, find a linear function which relates them.y = 18 when x = 21
A. f(x) = x - 3
B. f(x) = 
x
C. f(x) = 3x
D. f(x) = 
x
Answer: B
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In the diagram below, the sum of the numbers in any 2 small circles is the number in the large circle between them. Complete the diagram so that the same pattern holds.
A. 
B. 
C. 
Find the partial fraction decomposition for the rational expression.
A. 
+ 
B. 
+ 
C. 
+ 
D. 
+ 
Solve using a proportion. Round your answer to the nearest hundredth when necessary.It is recommended that there be at least 14.1 square feet of ground space in a garden for every newly planted shrub. A garden is 28.2' by 18'. Find the maximum number of shrubs the garden can accommodate.
A. 2 shrubs B. 12 shrubs C. 36 shrubs D. 169 shrubs
Solve the problem.Sales of frozen pizza for a club fund-raiser increased from 500 one year to 520 the next year. What was the percent of increase?
A. 96.2% B. 3.8% C. 96% D. 4%