question about expressing mathematical statements into logical statements with nested quantifiers.
\bullet every number besides 0 has a unique multiplicative inverse.
how do i express the statement above into logical statements?

This question doesn’t make any sense

The shelves will hold 270 books in total

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.