Find the inverse of the function.f(x) = 7x + 2
A. f-1(x) = log7(x + 2)
B. f-1(x) = log7(x - 2)
C. f-1(x) = log7(x - 7)
D. f-1(x) = log7(x + 7)
Answer: B
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Perform the indicated operations.(3x - 11y)(-4x + 3y + 1)
A. -12x2 + 53xy + 3x - 33y2 - 11y B. -12x2 + 53xy + 53y2 C. -12x2 + 44xy + 3x - 33y2 - 11y D. -12x2 + 9xy + 3x - 33y2
Find the curvature of the curve r(t).r(t) = (3 + ln(sec t))i + (4 + t)k, -?/2 < t < ?/2
A. ? = sin t B. ? = 1 - cos t C. ? = -cos t D. ? = cos t
Find all of the real and imaginary roots, stating the multiplicity of each.(x2 + 12x + 27)2 = 0
A. 9 with multiplicity 2
3 with multiplicity 2
B. -
with multiplicity 4
C. 
with multiplicity 2
-
with multiplicity 2
D. -3 with multiplicity 2
-9 with multiplicity 2
Find the equivalent markup. Round to the nearest tenth of a percent.Markup on cost: 
Markup on selling price: 21.2%
A. 73.1% B. 82.5% C. 17.5% D. 26.9%