For the reaction of iron with oxygen in question 4 above, how much heat is released when 3.5g of oxygen is produced? the pic is of question four. you!
i accidently put this as a math question. its actually chemistry sorry

D) the x-intercept represents adam's commission pay when he had zero total sales

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.