Explanation:
The use of computer in business field is increasing day by day. Computers have been heart of modern business. In business, computer help in several kinds...of work such as to keep the records of goods of employees, measure the quantity of goods, send e-maila, communicate with the customers, give online services to customers, control the branch offices from the main offices, and so on....
R₂ and R₃ can be replaced by:

The total R of the circuit is R₁+R₅+R₄ = 706 2/3
So the current in the circuit I=V/R is 100/(706 2/3) = 15/106 A
(I'm deliberately not trying to round the result)
The voltage drop over R₄ is V=I*R = 15/106 * 500 ≈ 70
So answer C would be my choice.
Answer:
There are a variety of ways to narrow down your search results in a library database. The two most direct ways are to focus your search with more specific keywords and/or to limit by various criteria before or after searching. The more specific you are with your search terms, the more relevant your results will be
Hope it helped!!!