Ok, so Lexi has an 800 cm long roll of paper. And she needs to cut the paper into 1 meter strips. We know that 800 centimeters would need to be converted to meters in order to see how many 1 meter strips can be made from this roll of paper.
100 cm = 1 m
800 cm = 8 m
Since her roll is 8 m long, she should be able to make 8 strips to line the shelf in her pantry.