What is the value of 3/7x0.1 divided 5/21

After two years, how much has been paid into interest?

Which is equivalent to 10/12? options: 10/18 5/6 3/12 9/11

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