Solve the following equations.
ln(2x) = 3

x = 10.0427

Step-by-step explanation:

When we have a logarithm in one side we can express it as an exponential equation (logₐM = N ⇒M=bⁿ)

*Remember that In is a logarithm whose base is e*

So we have In (2x) = 3

We proceed using the definition

2x = e³

x= e³/2

x = 20.0855/2

x=  10.0427

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225

22, 28, 34, 40, 46

b)   f(n) = 6n + 16

n = what is the number of the row ( 22 would be row 1) so if we replaced n with 1, we would get 22

c)   the 14th row will have 100 seats

(1)   (2)   (3)   (4)   (5)   (6)   (7)   (8)   (9)   (10) (11) (12) (13) (14)

22 | 28 | 34 | 40 | 46 | 52 | 58 | 64 | 70 | 76 | 82 | 88 | 94 | 100