The ratios 16/20 and 4/5
are proportional
true
false

What is the solution to the equation 9^(x+1) =27

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

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.