Answer:
30
Step-by-step explanation:
29 - 19 = 10 (difference)
triple 10 now:
10 x 3 = 30
Answer:
487=3x-17
487+17=3x-17+17
3x=53
3x/3=53/3
x=168
Step-by-step explanation:
The answer to this would be x = 20
Answer:
A. Perfect square Trinomial
Step-by-step explanation:
Just did its