Add or subtract. Simplify the answer.
- 
A. 
B. 
C. 
D. 
Answer: D
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Find an equation of the line that passes through the points (2, 9) and (-1, -12).
What will be an ideal response?
Find the distance in the xy-plane between the two points. Round an approximate result to the nearest hundredth.(12, 0) and (0, 16)
A. 40 B. 20 C. 4 D. 4.47
Solve.Nancy has $1.80 in change. She has three times as many nickels as quarters. She has two more quarters than dimes. How many coins of each type does he have?
A. 6 quarters, 4 dimes, 18 nickels B. 4 quarters, 6 dimes, 12 nickels C. 4 quarters, 2 dimes, 12 nickels D. 12 quarters, 10 dimes, 4 nickels
Solve the problem.Two stores sell a certain product. Store A has 33% of the sales, 1% of which are of defective items, and store B has 67% of the sales, 3% of which are of defective items. The difference in defective rates is due to different levels of pre-sale checking of the product. A person receives one of this product as a gift. What is the probability it is defective?
A. 0.012 B. 0.34 C. 0.02 D. 0.023