Simplify the expression. Assume that all variables are positive when they appear.(10
)(3
)
A. 1470
B. 210
C. 30
D. 210
Answer: B
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Solve the formula for the specified variable.-6k + ar = r - 9y for r
A. r = 
or r = 
B. r = 
or r = 
C. r = 
or r = 
D. r = 
or r = 
Provide an appropriate response.The graph of an equation of the form y = ax2 + bx + c, with a ? 0, is a 
.
A. straight line B. circle C. parabola D. line segment
Solve the problem.June wants to work for 10
hours at her part-time job this week. She has already worked 2
hours. How many more hours does she need to work?
A. 6
hours
B. 8
hours
C. 7 hours
D. 7
hours
Provide an appropriate response.A company with 1080 total employees prepares the following analysis for the length of time its employees have been with the company. Use the table to answer the question. 
What is the ratio of the number of employees working 6 years or less but more than 4 years to the total number of employees?
A. 
B. 
C. 
D. 