In a certain chemical, the ratio of zinc to copper is 3 to 13. A jar of the chemical contains 637 grams of copper. How many grams of zinc does it contain?
It contains
grams of zinc.

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.

Least to greatest : -10, -3, 5, 16

8- 2 = 6sally have 6 cars now.