College algebra: Find the domain of f/g; please help!

a. all real numbers
b. [-4/3, 2)
c. (-4/3, 2]
d. all real numbers except -4/3

Im gonna fail 7th grade selective breeding 1. creates offspring which are genetically identical to the parent 2. is the process of breeding only organisms with desirable traits 3. involves the removal of the nucleus of a cell 4. combines traits from organisms of different species

Don't know how to find x given these segment lengths

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