19. Find mAD. 20. Find mLPN

21. Which diagram(s) show XY tangent to circle Z? Check all that apply.

Please help with these questions

To complete your spring schedule, you must add calculus and physics. at 9: 30, there are three calculus sections and two physics sections; while at 11: 30, there are two calculus sections and three physics sections. how many ways can you complete your schedule if your only open periods are 9: 30 and 11: 30?

Is it true that product of 3 consecutive natural numbers is always divisible by 6? justifyyour answer

How do i do this activity, is appreciated