Determine if the graph is symmetric about the x-axis, the y-axis, or the origin. r = -5 - 5 cos θ

Origin only
x-axis only
y-axis only
No symmetry

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?

Give me the equations of two lines that have the same slope but are not parallel.

Aball is dropped from a height of 10m above the ground. it bounce to 90% of its previous height on each bounce. what is the approximate height that the ball bounce to the fourth bounce?