Astudent found the slope of a line that passes through the points (3, 15) and (5, 9) to be -1/3. what mistake did he make? a. he used the negative reciprocal of the slope. b. he added a negative sign. c. he used the reciprocal of the slope. d. he did not make a mistake. that is the correct slope.

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.