How many solutions does this equation have? 9x + 27 = 27

Name the most appropriate metric unit for each measurement

Which recursive formula can be used to determine the total amount of money earned in any year based on the amount earned in the previous year? f(n+1)=f(n)+5

The table represents a function f(x). what is f(3)? a.-9 b.-1 c.1 d.9