Solve the problem.Assume that the sales of a computer retail store are approximated by a linear function. Sales were  in  and  in . Let  represent 

alt="" style="vertical-align: -4.0px;" />. Find the equation giving yearly sales. Estimate sales in .



A. y = 404,000x + 890,000

y = 4,122,000 in 1989

B. y = 505,000x + 890,000

y = 4,930,000 in 1989

C. y = 505,000x + 890,000

y = 4,425,000 in 1989

D. y = 336,667x + 890,000

y = 3,920,001 in 1989

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Answer: A

Mathematics

Use a calculator to determine the pattern of attractors for the equation y = kx(1 - x) for the given value of k and the given initial value of x.k = 2.4, x = 0.7

A. Two attractors: 0.504, 0.599 B. One attractor: 0.576 C. One attractor: 0.583 D. Two attractors: 0.576, 0.586

Add or subtract as indicated. If terms are not like radicals and cannot be combined, so state. Assume all variables represent nonnegative real numbers.9 + 2

A. 11
B. 13
C. -13
D. -5

Solve. = 

A. 6j B. 6, 3 C. 6 D. 6, 3j

Convert.108 meters to hectometers

A. 1080 hm B. 10.8 hm C. 10,800 hm D. 1.08 hm