Write the expression in the standard form a + bi.
A. 
- 
i
B. 
+ 
i
C. 
- 
i
D. 
+ 
i
Answer: D
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Completely factor the polynomial or state that the polynomial is prime.9x2 - 9x - 54
A. (9x + 18)(x - 3) B. 9(x + 2)(x - 3) C. 9(x - 2)(x + 3) D. prime
Write the number in expanded form.40,610
A. 4 thousands + 6 tens + 1 one B. 4 ten thousands + 6 tens + 1 ten C. 4 thousands + 6 hundreds + 1 one D. 4 ten thousands + 6 hundreds + 1 ten
Solve the problem.A publisher spends 70,000 on a book for development, editing, and advertising. It costs the publisher 
per copy at the printer. Find the linear cost function to publish a book. If the publisher charges 
per copy, how many books must be sold to break even? (Round to the nearest unit.)
A. C(x) = 24.05x + 70,000 break-even = 5647 B. C(x) = 70,000x + 1.94 break-even = 1500 C. C(x) = 1.94x + 70,000 break-even = 2693 D. C(x) = 1.94x + 70,000 break-even = 3166
Write the word statement as an equation. Use x to represent the unknown number. Do not solve.The difference between the sum of 6 times a number and 4 and 3 times the number results in the number increased by 10.
A. (6x + 4) + 3x = x - 10 B. (6x + 4) - 3x = x + 10 C. 6(x - 4) - 3x = x - 10 D. 6x - (4 - 3x) = x + 10