Answer:
A proportion is simply a statement that two ratios are equal. It can be written in two ways: as two equal fractions a/b = c/d; or using a colon, a:b = c:d. The following proportion is read as "twenty is to twenty-five as four is to five.
The oldest form of that would be B. wood! hope that I helped!
An Islamic construction that is a tomb, but not a mosque is a building called Taj Mahal. The Taj Mahal was build in 1631, and it still stands today. It was created by the emperor Shah Jahan. Today, the Taj Mahal stands in india. Below I have attached a pic to show you how the Taj Mahal looks.