Richard and Teo have a combined age of 30. Richard is 3 years older than twice Teo's age. How old are Richard and Teo?

21

Step-by-step explanation:

step by step solution :

step   1   :

1.1     4 = 22

(4)3 = (22)3 = 26

equation at the end of step   1   :

  ((23) • 26)2

step   2   :

equation at the end of step   2   :

  (23 • 26)2

step   3   :

final result :

  218

ya

answer is  

d.

a circle

i got it down for you chief.