Solve the problem.Sales at Andrea's Formal Wear Shop were $926 this week. This is 
less than the sales last week. What were last week's sales?
A. $1026
B. $1037
C. $826
D. $1015
Answer: A
Mathematics
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Provide an appropriate response.If x3 ? f(x) ? x for x in [-1, 1], find 
f(x) if it exists.
A. -1 B. 0 C. 1 D. Does not exist
Mathematics
Use a double-angle identity to find the exact value of the expression.1 - 2 sin2 67.5°
A. - 
B. 
C. 
D. - 
Mathematics
Find a rectangular equation for the plane curve defined by the parametric equations.x = 2t - 1, y = t2 + 6; -4 ? t ? 4
A. y = - 
x + 30; for x in -6 ? x ? 4
B. y = x2 + 1; for x in -2 ? x ? 2
C. y = 
x2 + 1; for x in -6 ? x ? 4
D. y = 
x2 + 
x + 
; for x in -9 ? x ? 7
Mathematics
Use a graphing utility to graph the polar equation.r = cos 
?
A. 
B. 
C. 
D. 
Mathematics