Resposta:

[tex]\textsf{Leia abaixo}[/tex]

Explicação passo a passo:

[tex]\mathsf{J = C \times i \times t}\rightarrow\begin{cases}\mathsf{J = juros}\\\mathsf{C = capital}\\\mathsf{i = taxa}\\\mathsf{t = tempo}\end{cases}[/tex]

[tex]\mathsf{J = C \times (10\% - 8\%) \times t}[/tex]

[tex]\mathsf{J = C \times (2\%) \times t}[/tex]

[tex]\mathsf{J = 2.000 \times 0,02 \times 2}[/tex]

[tex]\boxed{\boxed{\mathsf{J = R\$\:80,00}}}[/tex]