Ignore the one I clicked on

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9

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

If (x-2) 2= 49, then x could be a. -9 b. -7 c.- 2 d. 5 e.9