Answer: The length of each piece of ribbon that Sara cut is 0.57 feet
Explanation:
We are given:
Total length of the ribbon = 4 feet
Number of equal parts the ribbon has been cut = 7
To calculate the length of each equal part, we divide the total length by the number of equal parts:

Putting values in above equation, we get:

Hence, the length of each piece of ribbon that Sara cut is 0.57 feet