Mrs naidu bought $155 in groceries. she paid her bill with $5 and $20 notes using a total of 13 notes. calculate how many of each type of each type of note were used.

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.