Name 2 characteristics of the Polar Coordinate System

.I will list some characteristics:

The polar coordinates only uses 2 variables:

r, that is the radius and can have values equal or greater than zero, this is:

0 ≤  r

and θ, which is the angle, we measure the angle from the x-axis and it grows counterclockwise. An interesting this about this variable is that, while we can have any value for θ, we have that θ is a periodic variable with a period of 2*pi

So if we have θ = A, is the same that having θ = A + n*2*pi, where n can be any integer number

And we can transform the rectangular cordinates to polar cordinates by:

x = r*cos(θ)

y = r*cos(θ)

you would have to sell 24 bracelets.

step-by-step explanation:

84/3.5 = 24

answer: $201

step-by-step explanation: to get the answer, you first get 3 nieces that he sold and multiply it by 67 and get $201, so he earned $201 selling his nieces.