How much trim is needed to surround two circular gardens that each have a diameter of 14 feet? Use 3.14 for pi.

Does anyone know how to solve and graph this: 4 + | a + 2 | < 7the only part i don't get is the "4 +"

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab

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?