This mapping shows a functional relationship when f(x)=4 what is the value of x

What is the measure of angle tvu shown in the diagram below

The total number of dental clinics total for the last 12 months was recorded

Acomputer store buys a computer system at a cost of $370.80. the selling price was first at $ 618, but then the store advertised a 20 % markdown on the system. answer parts a and b. a. find the current sale price.