How do you write three hundred six and four tenths in standard form?

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.

What type of symmetry does a rhombus have?

Point m is located at (-4, -6). what is located 4 units from point m? ( its on a coordinate plane by the way. )