You must first account for shadows
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 answer you are looking for is true.
The aspect of of instruments that improved during the Romantic period was the valves. The correct answer is D, valves.
