Answer:
The corn plant grew by 11.17 inches during week 2.
Step-by-step explanation:
7 and 1/3 inches tall at the end of Week 1.
The height at the end of week 1, as a simple fraction, is:
The corn plant was 18 1/2 inches tall at the end of Week 2.
At the end of week 2, the height will be of:
How many inches did the corn plant grow during Week 2?
Height at the end of week 2 subtracted by the height at the end of week 1. So
The corn plant grew by 11.17 inches during week 2.