A microphone is used to amplifi a persons voice
Expression: 20x + 9y = earnings
20 in 20x is the coefficient because 20 is the numerical value that is multiplying the variable x. Generally, the coefficient is placed before the variable.
The letter x in the term 20x is a variable because it is an unknown and changeable numerical value. The letter x can represent different numbers.
20x is a term in the expression. Terms are parted by a addition or subtraction signs.
The character trait reveals about della that she feels it is important to dress with modesty.
The answer is (D) The creator Victor Frankenstein
