Find a formula for the inverse of the function described below.A size 44 dress in Country C is size 2 in Country D. A function that converts dress sizes in Country C to those in Country D is 
A. f-1(x) = x + 20
B. f-1(x) = 2(x + 20)
C. f-1(x) = 2(x - 20)
D. f-1(x) = 2x + 20
Answer: B
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Solve the problem.Hye-Ran, who is 1.60 m tall, wishes to find the height of a tree with a shadow 30.06 m long. She walks 
from the base of the tree along the shadow of the tree until her head is in a position where the tip of her shadow exactly overlaps the end of the tree top's shadow. How tall is the tree? Round to the nearest hundredth.
A. 1.60 m B. 5.72 m C. 2.75 m D. 2.22 m
Use the properties of logarithms to find the exact value of the expression. Do not use a calculator.log7 73
A. 21 B. 1 C. 7 D. 3
Completely factor the polynomial or state that the polynomial is prime.15x2 + 26x + 8
A. (15x + 4)(x + 2) B. (3x - 4)(5x - 2) C. prime D. (3x + 4)(5x + 2)
Find an equation of the hyperbola centered at the origin which satisfies the given conditions.A hyperbola with vertices (0, ±3) and foci (0, ±5)
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1