after 3 hours of time an airplane was 1500 miles away it's original destination how many miles per hour (in one hour) does the pland travel?​

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.