What's bigger 13% or 3 over 25

Asphere has a diameter of 10 in. what is the volume of the sphere?

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

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?