Write the equation of a vertical line that goes through (2,-1)

Using only odd number for numerators write two different subtraction problems that have a difference of 3/4

Katie wants to collect over 100 seashells. she already has 34 seashells in her collection. each day, she finds 12 more seashells on the beach. katie can use fractions of days to find seashells. write an inequality to determine the number of days, dd, it will take katie to collect over 100 seashells.

Ineed to know how to write question one in mathematical terms