C In circle D, AB is a diameter. B. D 23. If mZADC= 3x+10 and mBC = 2x-30, what is mAC? %3D %3D 24. If mZBDC=3(x-5) and mBC = x+ 25, what is mA? %3D 1. 1. 25. If mZA=-(x-10) and mZC=-x+5, what is mBC. 3

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