Distance between (-1,-3) and (-9,2)

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?

What integer is equivalent to 9 3/2

Ana’s dachshund weighed 5 5/8 pounds when it was born . by age 4 the dog weighed 6 times as much. fill each box with a number or symbols from the list to show how to find the weight of ana’s dog at age 4 . not all numbers and symbols my be used