❗️❗️PLEASE HELP ME Please show the work for each of them ;D

Also I will report any answers that have nothing to do with the questions :)

TY AND ALSO I WILL MARK BRAINIEST TO WHOEVER EXPLAINS THE WORK THE BEST!!

25 inches - 0.694 yards

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.