[tex] > resolucao \\ \\ \geqslant progressao \: aritmetica \\ \\ an = a1 + (n - 1)r \\ 98 = 10 + (9 - 1)r \\ 98 = 10 + 8r \\ 98 - 10 = 8r \\ 88 = 8r \\ r = \frac{88}{8} \\ r = 11 \\ \\ \\ \geqslant o \: quinto \: termo \: da \: pa \\ \\ an = a1 + (n - 1)r \\ an = 10 + (5 - 1)11 \\ an = 10 + 4 \times 11 \\ an = 10 + 44 \\ an = 54 \\ \\ resposta \: > \: letra \: ( \: \: c \: \: ) \\ \\ > < > < > < > < > < > < > < > > > [/tex]
