In the equation 9c=18, the 9 is called a(1 point)

A) coefficient.

B) variable.

C) term.

D) product.

A) coefficient.

In the equation 9c=18, the 9 is called a coefficient.

To understand why, let's break down the terms in the equation. In algebra, an equation typically consists of mathematical expressions and an equal sign (=) that states the two sides are equal.

Here, we have the expression 9c on the left side of the equation. The expression is a combination of a number, 9, and a variable, c, multiplied together. The number, 9, is the coefficient of the variable, c.

In this case, the coefficient represents the factor by which c is multiplied. The variable, on the other hand, represents an unknown value that can vary or change.

So, in the equation 9c=18, the answer is A) coefficient.