You usually start off with twenty baby teeth. If she is losing four each year you would divide the amount of baby teeth by four:
20/4=5
So she lost all her teeth by Five years of age.
PS. which is quite young!
I will need the picture or information to answer this.
Late 18th century Edit
On July 16, 1798, President John Adams signed the first Federal public health law, "An act for the relief of sick and disabled Seamen." This assessed every seaman at American ports 20 cents a month. This was the first prepaid medical care plan in the United States. The monies were used for the care of sick seamen and the building of seamen's hospitals. This act created the Marine Hospital Service under the Department of the Treasury. In 1802 Marine Hospitals were operating in Boston; Newport; Norfolk; and Charleston, S.C. and medical services were contracted in other ports
Learning styles relate to our choice of major or choice of profession because not all individuals learn the same way. Exploring your preferred learning styles can help you engaged and be interested in growing your skills and knowledge in a particular field, which could assist you to plan on what educational career you will take to build a successful career advancement.
Moreover, visual learners are good sculptors, graphic artist, strategic planners and photographers, while verbal learners includes public speakers, journalist, politicians, and professional writers.