Which of the following lines is perpendicular to the line y=7/8x-2

Find the equation of the trend line (line of best fit). show your work i'm using the points (34,76) (42,91)

Amachine part consists of a half sphere and a cylinder, as shown in the figure. the total volume of the part is π cubic inches.

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.