Help me please Data Gathering techniques
A student council wants to know whether students would like the council to sponsor a mid-winter dance or a mid-winter carnival this year, Classify each sampling method and explain your classification. .​

Can someone me out here number 4 plz

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.

Find the measure for the angle indicated in bold