Answer:
m =
, z =

Explanation:
Δ PQT and Δ PRS are similar ( by AA postulate ), so the ratios of corresponding sides are equal, that is
=
, substitute values
=
( cross- multiply )
8(m - 2) = 5m ← distribute parenthesis on left side
8m - 16 = 5m ( subtract 5m from both sides )
3m - 16 = 0 ( add 16 to both sides )
3m = 16 ( divide both sides by 3 )
m =

and
=
, substitute values
=
( cross- multiply )
5z = 24 ( divide both sides by 5 )
z =
