In tape diagram form, how would you answer the following:
david and amrita had an equal number of marbles. after amrita gave 50 marbles to david, he had 5 times as many marbles as her. find the total number of marbles they had.

50x5=250  David now had 250 marble's plus the 50 more that amrita gave him

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.