X-8a/6 = 3a-2x solve for x

Which number produces a rationale number when multiplied by 1/5

Does the point (1, sqrt 7) lie on circle shown.

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?