The figure shows parallelogram WXYZ with its diagonal XY drawn. If angle 1 = 30 and angle 3 is 70, what are the measures of angle W, angle WXZ, angle Z, and angle WYZ

If the public debt of a country in 2009 was $10432000000000 and the budget for 2010 was in deficit by $201645000000, what was the public debt in 2010? do not include commas in your answer.

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83

I’m really confused and need to learn this