The perimeter of a rectangle is 354 cm if the width of the rectangle is 82 centimeters what is its length

L = Length
W = Width
Perimeter = 2L + 2W
354 = 2L + 2*(82)
354 = 2L + 164
190 = 2L
L = 95cm
95 cm

He gained 60,900 dollars for that land

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.