Needed for a grade and cant get it, if someone could please help i would love that.

Thanks!

Two numbers have a sum of -19. one number is x. what expression represents the other number?

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²

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.