Solve the problem.A size 4 dress in Country C is size 42 in Country D. A function that converts dress sizes in Country C to those in Country D is 
Find a formula for the inverse of this function.
A. f-1(x) = 
B. f-1(x) = 
C. f-1(x) = x - 38
D. f-1(x) = x + 38
Answer: C
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Factor completely.10z2 - 11z - 6
A. (10z - 3)(z - 6) B. (2z - 3)(5z + 2) C. (2z + 3)(5z - 2) D. (10z - 3)(z + 2)
Find the equation of the line that has the given properties. Write the equation in slope-intercept form, if possible. Contains (-9, -7); perpendicular to the line 5x + 8y = -77
A. 8x + 5y = -37 B. 5x - 8y = -37 C. 8x + 5y = -77 D. 8x - 5y = -37
Add or subtract. Assume all variables represent positive real numbers.4
- 
A. 5
B. 12
C. 7
D. 4
+ 
Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.log4 
A. 3 - log4
B. log464 - log4
C. 3 - 
log4(x - 1)
D. 3log44 - 
log4(x - 1)