Can you me answer both questions for number 5 a.65 degrees b.115 degrees c.155 degrees d.171 degrees

A

Step-by-step explanation:

CD bisects ∠BCD and ∠ACD, so

∠BCD = ∠ACD

5x - 20 = 3x - 2

-3x +20   -3x + 20

2x         =        18

÷2                 ÷2  

         x  =  9

∠BCD = 5x - 20  = 5(9) - 20  = 45 - 20  = 25

∠BCD + ∠CDB + ∠DBC = 180°

   25   +    90    + ∠DBC = 180°

         115           + ∠DBC = 180°

        -115                           -115

                            ∠DBC =  65°

if x decreases by 4 then y increases by 10

step-by-step explanation:

what are ur choices?