12. In the standard (x. y) coordinate plane, the point (2,1) is the midpoint of CD. Point C has coordinates (6,8).
What are the coordinates of point D?

Aparking lot is to be 400 feet wide and 370 feet deep. how many standard-sized cars fit in this lot considering a double-loaded (w4) two way traffic set up, an angle of 90° and a sw of 9’ 0’’? (do not consider handicapped parking spaces, and consider 15’ for turning aisles). show your work.

Name the quadrilaterals that have four equal sides.

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days