Answer:
A = 50x - 25
Step-by-step explanation:
The area (A) of the rectangle is calculated as
A = length × width
= 4 [tex]\frac{1}{6}[/tex] (12x - 6) ← change mixed number to improper fraction
= [tex]\frac{25}{6}[/tex] (12x - 6) ← multiply each term in the parenthesis by [tex]\frac{25}{6}[/tex]
= 50x - 25
