Solve the equation. if necessary, round to the nearest tenth. 4x^2 =81 a 20.25, -20.25 b 2.25, -2.25 c 4.5 -4.5 d 9, -9

How do i get the answer for 2/3 * 10/3

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

Acd that is originally priced at $15.85 red-tagged for the sale. what is the sale price of the cd