Solve the problem.Find an expression for the perimeter of the figure shown by adding the polynomials representing the lengths of the three sides.
A. 6x + 3
B. 6x + 9
C. 6x + 5
D. 6x3 + 18
Answer: A
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Solve the problem.If the average cost per unit C(x) to produce x units of plywood is given by 
what is the unit cost for 10 units? Round to the nearest cent.
A. $90.00 B. $3.00 C. $60.00 D. $22.50
Solve the problem.Suppose that in a certain city, the Democratic, Republican, and Independent parties always nominate candidates for mayor. It turns out that the percent of people voting for each party candidate in the next election depends on the percent that voted for that party in the last election. The percent voting for each party in the next election is given by 
= 
,where d, r, and i are the respective percents (in decimals) that voted for that party in the last
election. If the percent voting for a Democrat in the next election is 41%, the percent voting for a Republican in the next election is 42%, and the percent voting for the Independent party in the next election is 17%, then what percent of people voted for an Independent in the last election? A. 40% B. 25% C. 10% D. 50%
Determine i) the domain of the function, ii) the range of the function, iii) the domain of the inverse, and iv) the range of the inverse.f(x) = 
A. f(x): D = {x|x ? -1}, R = {y ? 0};
f-1(x): D = {x|x ? 0}, R = {y|y ? -1}
B. f(x): D is all real numbers, R = 
;
f-1(x): D = 
, R is all real numbers
C. f(x): D = 
, R = 
;
f-1(x): D = 
, R = 
D. f(x): D is all real numbers, R is all real numbers;
f-1(x): D is all real numbers, R is all real numbers
Multiply or divide as indicated.
÷ 
A. 
B. 
C. 
D. 