Answer:
the dimensions of the drawing scale are
60 units by 20 units
Step-by-step explanation:
Given:
A game room has a floor that is 75 feet by 20 feet
A scale drawing of the floor on grid paper uses a scale of 4 units:5 feet
The length of the drawing scale is
Let actual Length
feet.
actual width
feet.
Drawing 
Put the actual length in above equation.
Drawing 
Drawing 
Drawing
The drawing length is 60 units.
For drawing width
Drawing 
Put the actual width in above equation.
Drawing 
Drawing 
Drawing
The drawing width is 16 units.
Therefore, the dimensions of the drawing scale are
60 units by 16 units