Answer: r ≥ 13.276
Step-by-step explanation: To solve the inequality, we need to isolate r on one side of the inequality symbol.
r + (4/10)^(1/4) ≥ 14
Subtracting (4/10)^(1/4) from both sides:
r ≥ 14 - (4/10)^(1/4)
Simplifying the right side of the inequality:
r ≥ 14 - 0.724
r ≥ 13.276
Therefore, the solution is r ≥ 13.276.