Answer:
Plant will take 29 days to reach 122 cm in height .
Option (c) is correct .
Explanation:
Let us assume that x be the number of days plant will take to reach 122 cm in height .
As given
A vine 6 cm tall is planted in a garden. it grows 4 centimeters a day.
Equation becomes
Total height = Height of the plant + Height grow everyday × Number of days .
122 = 6 + 4 × x
122 = 6 + 4x
122 - 6 = 4x
116 = 4x

x = 29 days
Therefore plant will take 29 days to reach 122 cm in height .
Option (c) is correct .