The following expressions represent denominators of rational expressions. Find their LCD.r2 + 2r, 9r + 18, and r2 + 4r + 4
A. 9r(r + 2)2
B. r(r + 2)2
C. 9(r + 2)
D. 9(r + 2)2
Answer: A
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The bar graph shows the percentage of adults that use the Internet for specific tasks. Use the graph to represent the given set using the roster method.
the set of tasks in which usage exceeds 20%
A. {e-mail, information searches, news, job} B. {job, school} C. {e-mail, information searches, news} D. {e-mail, information searches}
Write the shaded area in the figure as a mixed number and as an improper fraction.
A. 4
; 
B. 4
; 
C. 3
; 
D. 3
; 
Work the application.Pete is taking a driving vacation. He keeps a record of the distance that he drives each day.Monday405 milesTuesday300 milesWednesday268 milesThursday268 milesFriday201 milesWhat was his total mileage for the first three days of the week?
A. 1073 miles B. 1442 miles C. 963 miles D. 973 miles
Express the rational expression in lowest terms.
A. 
B. 
C. 
D. 