Resposta :
Juros simples
[tex] \sf{j = c \times i \times t} \\ \sf{j = 500 \times 1,5\% \times 7} \\ \sf{j = 500 \times \frac{1,5}{100} \times 7} \\ \sf{j = 500 \times 0,015 \times 7} \\ \sf{j = 7,5 \times 7} \\ \boxed{ \sf{j = 52,5}}[/tex]
Resposta
Item (a)
Att: José Armando