Solve.In order for a chemical reaction to take place, the Fahrenheit temperature F of the reagents must be at least 154.61° F. At what Celsius temperatures, C, will the reaction occur?  Round to the nearest hundredth of a degree, if necessary.

A. At temperatures less than or equal to 68.12° Celsius
B. At temperatures greater than or equal to 310.3° Celsius
C. At temperatures less than 310.3° Celsius
D. At temperatures greater than or equal to 68.12° Celsius


Answer: D

Mathematics

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Solve the problem.After using a new order of typewriter ribbons, John's Office Services found that a new ribbon could be used to type 69 pages. This was a decrease of 11.5% of pages from the old ribbons. How many pages could John's Office Services type with an old ribbon?

A. 87 pages B. 73 pages C. 78 pages D. 69 pages

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