Can someone help answer at least one? :) ty

Step-by-step explanation:

a). Ratio of OP and RT =

                                     =

                                     =

b). Since ΔOPQ ~ ΔRTS, their corresponding sides will be proportional.

    OQ =

    OQ = 15 cm

c). m∠P = m∠T = 60°

d). m∠Q = m∠S

    By applying angle sum theorem in ΔRST,

    m∠R + m∠S + m∠T = 180°

    26° + m∠S + 60° = 180°

    m∠S = 180° - 86°

             = 94°

    Therefore, m∠Q = m∠S = 94°