Solve the problem.Elissa wants to set up a rectangular dog run in her backyard. She has 22 feet of fencing to work with and wants to use it all. If the dog run is to be x feet long, express the area of the dog run as a function of x.
A. A(x) = 12x - x2
B. A(x) = 11x - x2
C. A(x) = 10x - x2
D. A(x) = 13x2 - x
Answer: B
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Simplify the complex fraction.
A. 
B. 
C. 
D. 
Simplify. Assume that all variables are nonzero.
A. 0 B. 1 C. 247 D. Undefined
Solve the problem.A deposit of $5000 is made in an account that earns 8% interest compounded quarterly. The balance in the account after n quarters is given by the sequencean = 5000
n n = 1, 2, 3, ... Find the balance in the account after 9 years.
A. $10,255.44 B. $10,253.44 C. $10,089.44 D. $10,199.44
Tell whether a linear model or a quadratic model is appropriate for the data. If a quadratic model is appropriate, then decide also whether the lead coefficient should be positive or negative.
A. Quadratic; leading coefficient negative B. Quadratic; leading coefficient positive C. Linear