Add or subtract. Assume all variables represent positive real numbers.3 
+ 4xy 
A. 15 xy3
B. 15x2y3
C. 7xy4
D. 7x2y4
Answer: A
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Solve the problem.Zak is paid a weekly salary of $490 plus 6% commission on his weekly sales. Let p be Zak's total salary for s dollars in weekly sales.
A. p = 0.06s + 490 B. p = 6s + 490 C. p = 6s - 490 D. p = 0.06s - 490
Identify the base and the exponent for the exponential expression.(-6x)3
A. Base: -6x, exponent: 3 B. Base: 6x, exponent: 3 C. Base: x, exponent: 3 D. Base: 3, exponent: -6x
Simplify the expression.2565/4
A. 16,384 B. 1024 C. 65,536 D. 262,144
The following chart shows some figures from an income statement. Prepare a vertical analysis by expressing each item as a percent of net sales. Round percents to the nearest tenth of a percent.
A. 55.0%, 8.3%, 5.6%, 13.8% B. 55.0%, 8.4%, 10.2%, 25.1% C. 55.0%, 15.1%, 10.2%, 25.1% D. 55.0%, 8.3%, 67.8%, 13.8%