Answer:
C. 20
Step-by-step explanation:
Answer:
$1.50 bro
Step-by-step explanation:
Answer:
Step-by-step explanation:
..
Answer:
Mean age = 1271.27
Step-by-step explanation:
No of children = 77
The age at which children first began to combine words = 16.51 months
Mean age = No of children × age at which children first began to combine words
= 77 × 16.51
= 1271.27
Mean age = 1271.27