Answer:
2/5, 0.4, and 40%
Explanation:
If Esteban has $120 and bought a tablet for $48, let's go ahead and determine what percent of $120 is $48 as shown below;
[tex]\begin{gathered} x\text{ \% of 120 = 48} \\ \frac{x}{100}\times120=48 \\ 12x=480 \\ x=\frac{480}{12} \\ x=40\text{\%} \end{gathered}[/tex]Let's go ahead and convert 40% to a fraction and a decimal number;
[tex]40\text{\%=}\frac{40}{100}=\frac{2}{5}=0.4[/tex]