Three tea bags are needed to make a gallon of iced tea. How many tea bags are needed to make four gallons?

2x - 20 = 32 20 - 3x = 8 6x - 8 = 16 -13 - 3x = -10

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

With number 11 ( show how you got the answer)