Pleace help me on my math pleace answer the question 2.) The school store sells markers for $0.35 each and pencils for $0.15 each. Anthony spent $2.80 to buy a total of 12 markers and pencils. How many markers did Anthony buy?

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.

Ibelieve it's a. 2.2 - x = -10.85 (plz tell me if it's right : ) )