What is the value of Z in degrees, in the figure shown?

Mary had at least an 80% on her test write an inequality to represent this situation

The center of the circumscribed circle lies on line segment and the longest side of the triangle is equal to the of the circle.

Lucy is a dress maker. she sews \dfrac47 7 4 of a dress in \dfrac34 4 3 hour. lucy sews at a constant rate. at this rate, how many dresses does lucy sew in one hour? include fractions of dresses if applicable