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This equation shows how the cost of Mark's birthday party depends on the number of guests. $\newline$ $c = g + 14$ $\newline$ The variable $g$ represents the number of guests, and the variable $c$ represents the cost in dollars. If there are $4$ guests, how much will Mark's birthday party cost? $\newline$ $\$$ $\_\_\_\_$

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Evaluate two-variable equations: word problems

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Q. This equation shows how the cost of Mark's birthday party depends on the number of guests.

\newline

c = g + 14

\newline

The variable

g

represents the number of guests, and the variable

c

represents the cost in dollars. If there are

4

guests, how much will Mark's birthday party cost?

\newline

\$

\_\_\_\_

Identify Given Values and Equation: Step $1$ : Identify the given values and the equation. $\newline$ We know the equation is $c = g + 14$ , where $g$ is the number of guests. Here, $g = 4$ .
Substitute Value into Equation: Step $2$ : Substitute the value of $g$ into the equation. $\newline$ $c = 4 + 14$
Perform Addition to Find Cost: Step $3$ : Perform the addition to find the cost. $c = 18$

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