Answer:
14 rows.
Step-by-step explanation:
We have been given that Jess  is planting rows of squash. To plant a row of squash Jess needs 6/7 square feet. There are 12 square feet in Jess's backyard.
To find number of rows that Jess can plant, we will divide total area of backyard by area needed to plant each row as:
[tex]\text{Number of rows that Jess can plant}=12\div\frac{6}{7}[/tex]
[tex]\text{Number of rows that Jess can plant}=\frac{12}{1}\div\frac{6}{7}[/tex]
Convert into multiplication problem by flipping the 2nd fraction:
[tex]\text{Number of rows that Jess can plant}=\frac{12}{1}\times \frac{7}{6}[/tex]
[tex]\text{Number of rows that Jess can plant}=\frac{2}{1}\times \frac{7}{1}[/tex]
[tex]\text{Number of rows that Jess can plant}=14[/tex]
Therefore, Jess can plant 14 rows of squash in her backyard.