∀x((cube(x) ∧ large(x)) → frontof(x, a))
∃x(large(x) ∧ ¬frontof(x, a))
∃x ¬cube(x)
i am using fitch to solve this proof. for the life of me i can't figure it out.

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

The length of a field is 100 yards and its width is 75 yards. if 1 inch represents 25 yards, what would be the dimensions of the field drawn on a sheet of paper?

Rationalize the denominator- 12x/√x-10