Need help finding the slope and equation ​(will give brainilest for most accurate answer)

Eileen purchased 3.4 pounds of apples at the total cost of $19.72. if she purchases 6.2 pounds of apples at this store, how much would it cost?

Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?

Which is the solution to the inequality? 2 3/52 1/15 b< 3 2/15 b> 3 2/15