Question 1 of 20 : Select the best answer for the question.
1. What's the mean temperature if the maximum daily temperature is 92° and the
minimum is 49°?
A. 70.5°
B. 43.0°
C. 57.8°
D. 75.1°
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According to statistics a person will devote 32 years to sleeping and watching tv. the number of years sleeping will exceed the number of years watching tv by 18. over a lifetime, how many years will the person spend on each of these activities

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