Answer:
22 cm
Step-by-step explanation:
(b/16)² = 121/64
b² = 121/64 × 256
b² = 484
b = 22 cm
4.4 ≤ x
2/5 ≤ x -4
solve using inverse operations:
2/5 ≤ x - 4
0.4 ≤ x - 4
+4 +4