What expressions go in the correct section?

numbers: 3-5, 3+5, -3-5, -3+5, 3 - -5, 3+ -5, -3 - -5

greater than 1: less than 1:

The blue whale is the largest animal living on the earth. the average blue whale measures 100 feet long (30 meters) and weighs 300,000 pounds (136,000 kilograms). a whale’s head is 1⁄3 of the length of its body. a new baby whale is 1⁄4 the length of a grown whale. the average man is 1⁄17 the length of a blue whale, and 1⁄1,818 its weight. a human baby measures 1⁄4 of the length of an adult. calculate the following information: how long is a whale’s head? how long is a new baby whale? how tall is the average man? how much does the average man weigh? how tall is the average human baby?

How to do this , and can some one explain

Christina can paint 420 square feet in 105 minutes. which unit rate describes the scenario?