Solve the problem.Barges from ports X and Y went to cities A and B. X sent 30 barges and Y sent 8. City A received 21 barges and B received 17. Shipping costs $220 from X to A, $300 from X to B, $400 from Y to A, and $180 from Y to B. $8760 was spent. How many barges went where?
A. 21 from X to A, 9 from X to B, 0 from Y to A, and 8 from Y to B
B. 19 from X to A, 11 from X to B, 2 from Y to A, and 6 from Y to B
C. 17 from X to A, 17 from X to B, 4 from Y to A, and 4 from Y to B
D. 15 from X to A, 15 from X to B, 6 from Y to A, and 2 from Y to B
Answer: A
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Solve the proportion. Write the solution in decimal form when applicable.
= 
A. 26 B. 72 C. 68 D. 72.9
Perform the matrix operation. 
+ 
=
A. 
B. 
C. 
D. 
An advertising agency conducted a survey and found that the number of units sold, N, is related to the amount a spent on advertising (in dollars) by the following formula:
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How many units are sold after spending $3,000? $__________ (Round your answer to the nearest unit)
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How many units are sold after spending $38,000? $__________ (Round your answer to the nearest unit)
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How much needs to be spent (to the nearest hundred dollars) to sell 4,000 units? $__________
What will be an ideal response?
List the terms of the expression. Then identify the coefficient of each term.6h - 8
A. 6h; 6 B. 6h, -8; 6, 8 C. 6h, -8; 6, -8 D. h; 6, -8