What is the perimeter of the triangle? (Round to the nearest tenth)
12
about 13.2
21
about 12.6

Aportion of a line bounded by two points is defined as

Asocial networking site currently has 400,000 active members, and that figure is predicted to increase by 32% each year. the following expression represents the number of active members on the site after t years.

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees