Solve the problem.The cost of manufacturing a molded part is related to the quantity of parts produced during a production run. When 100 parts are produced, the cost is 
. When 300 parts are produced, the cost is $1300. What is the average cost per part?
A. $3.33 per part
B. $5.00 per part
C. $0.20 per part
D. $6.00 per part
Answer: B
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Solve the problem.In the formula A = Iekt, A is the amount of radioactive material remaining from an initial amount I at a given time t and k is a negative constant determined by the nature of the material. A certain radioactive isotope has a half-life of approximately 900 years. How many years would be required for a given amount of this isotope to decay to 75% of that amount?
A. 299 yr B. 225 yr C. 374 yr D. 1800 yr
The bar graph shows the percentage of adults that use the Internet for specific tasks. Use the graph to represent the given set using the roster method.
{x | x is a task in which usage lies between 15% and 33%}
A. {news} B. {email, information searches, news, job, school} C. {news, job} D. {information searches, news, job}
Factor out the greatest common factor.3z - 12
A. 3(z - 4) B. 4(z - 3) C. 3(z + 4) D. 3(z - 12)
Use the properties of parallel lines to solve the problem.In the figure, 
. m(?ABC) = 50°. Given this information, find the measures of as many other angles as possible.
A. m(?ADE) = 50°, m(?DBC) = m(?ECB) = 130° B. m(?ADE) = 50°, m(?DBC) = 130° C. m(?ADE) = m(?ACB) = m(?AED) = 50° D. m(?ADE) = m(?ACB) = m(?AED) = 50°, m(?DBC) = m(?ECB) = 130°