Aaron has 16 blue pens and 12 red pens. He wants to divide the pens into equal groups with none left over.
Each group contains some blue pens and some red pens.
What is the maximum number of groups that Aaron can make?

The pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section

Ijust need these 2 questions answered (the second pic is just confirmation i'm not confident in that answer)

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?