The outside temperature decreases by 7 degrees in 3.5 hours. 5a.) How would you represent the temperature change as a unit rate? Express your answer as an integer.
Please help I need an answer asap!

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

Use order of operations to solve. (24 divided 3) + 3.5 + 3 power of 3

Joe had 25 pencils he divided them into 5 pieces how many pieces does he have left