6x^ 2 +1= 20 round to the nearest hundredth.

0.73

Step-by-step explanation:

6x^2 + 1 = 20

6x^2 = 20 - 1

6x^2 = 19

x^2 = 19 / 6

x = root of 19/6

= 0.726483157

= 0.73 (nearest hundredth)

the expression (1.26)2t reveals the approximate rate of increases in the number of plants semiannually.

hope this : )

your answer would be 12