Byron bought a keyless entry door lock that has the digits zero through nine on the keypad he wants to choose a three digit entry code how many different combinations are possible if the digits can be repeated

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.