Solve the equation for the specified variable.A = P(1 + nr) for r
A. r = 
B. r = 
C. r = 
D. r = 
Answer: C
Mathematics
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Multiply and simplify.
A. 32
B. 32y4
C. 8y3
D. 32y3
Mathematics
Identify the graph of the equation as a parabola, hyperbola, ellipse, or circle.36y2 = 144 + 4x2
A. circle B. hyperbola C. parabola D. ellipse
Mathematics
Solve the problem.The profit that the vendor makes per day by selling x pretzels is given by the function 
Find the number of pretzels that must be sold to maximize profit.
A. 1.6 pretzels B. 490 pretzels C. 400 pretzels D. 800 pretzels
Mathematics
Find an equation of the the line satisfying the given conditions.Through (3, -8); perpendicular to 7x + 5y = 61
A. -5x + 7y = 53 B. 7x + 5y = -71 C. 3x - 5y = 61 D. -5x + 7y = -71
Mathematics