Simplify the expression. Express the answer so that all exponents are positive. Whenever an exponent is 0 or negative, we assume that the base is not 0.
-1
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.Mark had 
in his checking account. He wrote a 
check for his car payment, deposited his 
paycheck, and then wrote a 
check for his rent. What is the balance in his account?
A. $460 B. $2200 C. $878 D. $1782
Simplify each side of the equation and then solve. Check your solution.7x + x = 8 - 32
A. 3 B. 8 C. -3 D. -8
Find the amount that should be invested now to accumulate the following amount, if the money is compounded as indicated.$4900 at 5.7% compounded quarterly for 9 years
A. $2944.26 B. $2975.23 C. $1955.74 D. $8154.86
The number of people playing tennis T (in millions) in the United States from 2000 through 2007 can be approximated by the function
?
?
and the U.S. population P (in millions) from 2000 through 2007 can be approximated by the function 
, where t represents the year, with t = 0 corresponding to 2000.
Find 
.
?
A. 
?
B.
?
C.
D.
?
E.
