Answer:
Option C, [tex]12\frac{1}{2}[/tex]
Step-by-step explanation:
Step 1: Multiply both sides by 5/2
[tex]5 = \frac{2}{5}a[/tex]
[tex]5 * \frac{5}{2} = \frac{2}{5}a * \frac{5}{2}[/tex]
[tex]\frac{25}{2}=a[/tex]
[tex]12\frac{1}{2}=a[/tex]
Answer: Option C, [tex]12\frac{1}{2}[/tex]
Hope this helps! Let me know if you have any questions