Solve the problem.A study in a small town showed that the percent of residents who have college degrees can be modeled by the function 
where x is the number of years since 2005. Does this model indicate that the percent of residents with a college degree is increasing or decreasing?
A. Decreasing
B. Increasing
Answer: B
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Solve the work problem.Mark and Rachel work for Smith Landscaping Company. Mark can finish a planting job in 4 hours, while it takes Rachel 3 hours to finish the same job. If Mark and Rachel work together on the job and Smith Landscaping charges $40 per hour for a two-person crew, then how much will Smith Landscaping charge for the job? (Round your answer to the nearest cent, if necessary.)
A. $140.00 B. $23.33 C. $68.57 D. $137.14
Add or subtract as indicated. Write the answer in simplest form.- 
+ 
A. - 
B. 
C. 
D. 
Find the inverse, if it exists, of the given matrix.
A. 
B. 
C. 
D. 
Find the point on the given plane closest to 
.
?
?
NOTE: Please enter your answer in the form 
.
What will be an ideal response?