Although some Saguaro cacti never grow arms, those that grow arms  do so between the ages of 50 to 100 years. The size of this cacti  and the number of arms is due to factor â¦ s, such as soil and  rainfall. Saguaro cacti grow in the Sonoran Desert of the United  States.he saguaro cactus is the world's largest cactus species in the  world.This cactus can grow over 50 feet tall and weigh over 2,000  pounds (907.185 kilograms)! It also has a â¦ lifespan of 150 years!
Donât forget we have a detailed Registered Nurse Guide â covering everything you need to know to become a RN. In the United States the average annual salary for a Registered Nurse is currently $67,930 which breaks down as an average of $32.66 per hour, $1,306 per week and a monthly salary of $5,660.owa is the lowest paid state on mainland U.S.A. with an average RN salary of $52,540 â not so great if you live there! The large variation can in part be explained by simple supply and demand influences.
Registered Nurse Average Salary: Mean Salaries for RNs. According to the Bureau of Labor Statistics lastest data, the average salary of a registered nurse in the United States is $69,790. The average hourly wage of a registered nurse is $33.55. Keep in mind that these are only averages, and that a registered nurse may make more or less than these amounts based on location, experience, and other factors. In addition, the starting salaries for an RN may be much less than the average salary.