Answer:
The equation in the orange background
Step-by-step explanation:
• from the general formular describing arithmetic progression
[tex]a _{n} = a _{1} + (n - 1)d[/tex]
» a1 is the first term of the sequence.
» n is the number of terms
» d is the common difference.
• when first term is 7 and common difference is 5, therefore recurssive equation is;
[tex]{ \boxed{ \boxed{a _{n} = 7 + (n - 1)5}}}[/tex]
