ANSWER
[tex]m < \: 1 = 80 \degree[/tex]
[tex]m < \: 2= 70 \degree[/tex]
EXPLANATION
Since
[tex]a || b[/tex]
line s and t are both transversals.
This implies that,
[tex]m < \: 1 \: and \: 80 \degree[/tex]
are alternate angles.
Alternate angles are equal. Therefore,
[tex]m < \: 1 = 80 \degree[/tex]
Also,
[tex]m < \: 2= 70 \degree[/tex]
because corresponding angles are equal.