How long would it take to earn $6000 in interest on a principal of $9000 at an annual simple interest rate of 4.1% use the simple interest formula i equals prt where i is the interest earned p is the principal r is it interest rate per year and t is the time

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?