[tex]{\color{blue}{\huge{\underbrace{\overbrace{\mathfrak{\:\:\:\:\:\:\:꧁"Answer"꧂\:\:\: }}}}}}[/tex]
Given:
[tex]{a}^{20}=?[/tex]
[tex]n=20[/tex]
[tex] d=5[/tex]
[tex] {a}^{1}=5[/tex]
[tex]\small\color{black}{{\underline{\bold{{ an= {a}^{1} +(n-1)d }}} } } \\ an = 5 + (20 - 1)5 \\ an = 5 + (19)(5) \\ an= 5 + (95) \\ = an = 100[/tex]
