👤

Answer :

Answer:

[tex]a=10.5[/tex]

Step-by-step explanation:

[tex]2.25(a+1.3)=20.7\\2.25a+2.925=20.7\\-2.925\\2.25a=23.625\\[/tex]

÷[tex]2.25[/tex]

[tex]a=10.5[/tex]