Find the value of tan(3Arc cos 3/4)

Asap 25 pts + brainlest to right/best answer

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.

Write the point-slope form of the line passing through (2, -12) and parallel to y=3x.