Solve the equation.
- 15 = 
A. 0
B. 45
C. all real numbers
D. no solution
Answer: D
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Set up an equation that can be used to solve the problem. Solve the equation and answer the question asked. To make each Martini at the Faculty Holiday Party, Prof. Smith mixes 3 ounces of vodka and 1 ounce of dry Vermouth. If the vodka is 25% alcohol by volume and the Vermouth is 11% alcohol by volume, what is the percentage of alcohol in each Martini?
A. 36% B. 21.5% C. 9% D. 18%
Simplify the expression.(x-5)7
A. -7x5
B. -7x35
C. 
D. - x35
Match the equation of the ellipse with the appropriate description. 
+ 4y2 = 6400
A. x-intercepts (2500, 0), (-2500, 0); y-intercepts (0, 89), (0, -89)
B. x-intercepts (50, 0), (-50, 0); y-intercepts (0, 40), (0, -40)
C. x-intercepts (40, 0), (-40, 0); y-intercepts (0, 50), (0, -50)
D. x-intercepts 
, 
; y-intercepts (0, 80), (0, -80)
Calculate.7
+ 9.308
A. 1.933 B. 16.683 C. 9.308 D. 16.703