A middle school took all of its 6th grade students on a field trip to see a symphony. The students filled 300 seats, which was 10% of the total number of seats in the theatre. How many total seat were in the theatre?

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.