18. You and your business partner are mailing advertising flyers to your customers. You address 6 flyers each minute and have already done 80. Your partner
addresses 4 flyers each minute and has already done 100. Graph and solve a
system of equations to find when the two of you will have addressed equal
numbers of flyers.

Provide an example of a trigonometric function and describe how it is transformed from the standard trigonometric function f(x) = sin x, f(x) = cos x, or f(x) tan x using key features.

The circumference of a circle is 5 pi cm. what is the area of the circle?

Each of the walls of a room with square dimensions has been built with two pieces of sheetrock, a smaller one and a larger one. the length of all the smaller ones is the same and is stored in the variable small. similarly, the length of all the larger ones is the same and is stored in the variable large. write a single expression whose value is the total area of this room. do not use any method invocations.