lucy is a dress maker she sews 4/7 of a dress in 3/4 hour lucy sews at a constant rate at this rate how many dresses does ucy sew in 1 hour

You have to give us options

Period is the time it takes for one “cycle” to complete. in the parent sine function, period is 2*pi since sin(0) = 0, sin(pi/2) = 1, sin(pi) = 0, sin(3pi/2) = -1, and sin(2pi) = 0. at that point, the sequence repeats itself. i’m not sure if your graph is similar to the sine function since you didn’t provide a picture, but you can find the period by looking at a graph.

9.8? i'm not really sure