81 is 40.5% of what number
1. 2,000
2. 200
3. 33
4. 330

What are the sotions to the quadratic equation 9x^2=4

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 is the solution of log2  (3x  -  7)  =  3? 4 5