Help, please (Math - Dividing Fractions)

An is a number that is written without a component. it is a number that is either or . an exponent is a or a number that another number is being to. the number that is being raised to a is called the . the or power tells you how many times to the base by . if an exponent is fractional then ask yourself the question: what when multiplied by itself a certain number of times will equal the number?

Solve the proportion of 16/50=x/156.25

To prove a polygon is a rectangle, which of the properties listed must be included in the proof?