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(If you it helps you, translate the following arguments into symbols.) Example for answers:  Contrapositive, Invalid   Determine the logic reasoning used and whether the arguments are valid or invalid : If it is a cat, then it is an animal. This is not an animal. Therefore, this is not a cat.

Using the Mental Math Technique—Metric Units of Length, solve the following problem:                                           1.25 km to _____________ dm 

Using the Mental Math Technique—Balancing with Fractions, solve the following problem:     5  1/3 − 2/3 .

Which is a better buy: 5 cases of soft drinks for $10.30 or 15 cases for $30.75.

Using the Mental Math Technique—Metric Units of Length, solve the following problem:                                           180 cm to _____________ mm

Using your calculator, compute the answers to the following problems.  Leave your answer in floating decimal form, do not round. =

Write the fraction as a terminating decimal:  9/4.

Write the ratio as a percent:  13:20. 

Oral corticosteroids are useful for the short term treatment of acute COPD exacerbation.  What should the provider keep in mind when prescribing oral corticosteroids to patient who has COPD?

  A 349 kg car moving at 14.2 m/s hits from behind another car moving at 9.40 m/s in the same direction. If the second car has a mass of 719 kg and a new speed of 11.5 m/s, what is the velocity of the first car after the collision?