Solve.A vendor has learned that, by pricing pretzels at $1.50, sales will reach 102 pretzels per day. Raising the price to
will cause the sales to fall to 76 pretzels per day. Let y be the number of pretzels the vendor sells at x dollars each. Write a linear equation that models the number of pretzels sold per day when the price is x dollars each.
A. y = -52x - 180
B. y = 52x + 24
C. y = - 
x + 
D. y = -52x + 180
Answer: D
Mathematics
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Solve the equation.
- 6 = 0
A. {3} B. {33} C. {39} D. ?
Mathematics
Combine the following, if possible.
+ 
+ 
+ 12
A. 128
B. 12
+ 116
C. 12
+ 17
D. 74
+ 1036
Mathematics
Add or subtract as indicated.(6x + 12xy - 14y) - (30x - 10xy - 8y)
A. -24x + 22xy - 6y B. -8xy C. -6x + 24xy + 22 D. -24x - 22xy - 22y
Mathematics
Use the graph to estimate all solutions to the system of equations.y2 - x2 = 16x2 + 4y2 = 64
A. (0, -4), (0, 0), (0, 4) B. (0, -4), (0, 4) C. (0, 0) D. (0, -4), (-4, 0)
Mathematics