A car corporation produced 820 fewer cars this month than last. Write a signed number to represent this month's change in production.

Aladder that is 20ft long is leaning against the side of a building. if the angle formed between the ladder and the ground is 75 degrees how far is the bottom of the from the base of the building?

What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?

Meg constructed triangle poq and then used a compass and straightedge to accurately construct line segment os, as shown in the figure below, which could be the measures of angles pos and angle poq?