Factor completely. If unfactorable, indicate that the polynomial is prime.7x2 + 28x - 21x - 84
A. 7(x + 4)(x - 3)
B. 7(x + 4)(x + 3)
C. (7x + 28)( x - 3)
D. (7x - 21)(x + 4)
Answer: A
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Rewrite the expression with positive exponents and simplify.
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A. ?
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Solve the problem.A salesperson has a base salary of $1500 plus a 8% commission on her sales.a) Write a linear equation that gives her salary, y, in terms of her sales, x.b) Using the equation found in part a, find how much the salesperson earns if the sales are $38,000.c) If the earnings are $5420, then how much were the sales?
A. y = 1500 + 0.08x; $4540; 48,000 B. y = 1500 + 0.08x; $4540; 50,000 C. y = 1500 + 0.08x; $4540; 49,000 D. y = 1500 - 0.08x; $4540; 51,000
Find the unit price.An 8-oz bottle of hair spray costs $3.38. Round to the nearest cent.
A. $0.34/oz B. $0.04/oz C. $0.42/oz D. $0.27/oz
Write the number in decimal notation.Fourteen and seven hundred forty-seven thousandths
A. 0.14747 B. 14.747 C. 14.0747 D. 14,747