Find the difference.-29 - (-7)
A. 22
B. 36
C. -36
D. -22
Answer: D
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Find a formula for the inverse of the function described below.A size 48 dress in Country C is size 8 in Country D. A function that converts dress sizes in Country C to those in Country D is 
A. f-1(x) = x + 16 B. f-1(x) = 2(x + 16) C. f-1(x) = 2x + 16 D. f-1(x) = 2(x - 16)
Write an equation to describe the variation. Use k for the constant of proportionality.p varies directly as the square of q and inversely as the cube of r.
A. p + q2 - r3 = k
B. p = 
C. pq2r3 = k
D. p = 
Indicate whether the function is one-to-one.{(10, -13), (1, -8), (-12, -12)}
A. Yes B. No
Find the requested function value for the given function. Round the answer to the nearest tenth when necessary.If f(x) = 
, find the value of f(4).
A. 18 B. 16 C. 4 D. 4.5