Answer:
a. The inequality will be:

b. Solving the inequality:

c. Jeanette should buy 14 tiles to form one row.
Explanation:
Suppose, the number of tiles needed to make one row

Each square tiles measure
ft on each side.
So, the total length of
number of tiles

Given that, the room is 10 ft wide.
So, the inequality will be:

Solving the above inequality.....

So, Jeanette should buy 14 tiles to form one row.