Sam has some money. if he spends $15, he will have 2/5 of the money he started with

Determine the quotient of the following expression. (15n^2-27n) / 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

What is the frequency of the sinusoidal graph?