Explain what can happen if you line up the digits incorrectly when you rewrite addition problems

How do you multiply a mixed fraction by a regular fraction

Solve - pv + 40 < 65 for v solve 7w - 3r = 15 for r

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label