Use the multiplication property of equality to solve the equation. -k = 21
A. -20
B. 20
C. -21
D. 21
Answer: C
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Determine if the geometric series converges or diverges. If it converges, find its sum.
+ 
2 + 
3 + 
4 + 
5 + . . .
A. converges, 
B. converges, 
C. converges, 
D. diverges
Decide whether the number is prime or composite.9
A. Prime B. Composite
Solve.A vendor has learned that, by pricing pretzels at $1.00, sales will reach 110 pretzels per day. Raising the price to $1.50 will cause the sales to fall to 84 pretzels per day. Let y be the number of pretzels the vendor sells at x dollars each. Write a linear equation that relates the number of pretzels sold per day, y, to the price x.
A. y = -52x + 162
B. y = -52x - 162
C. y = - 
x + 
D. y = 52x + 58
Write the equation in standard form.y2 - x2 + 49 = 0
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1