Pl hel What is an equation of the line that passes through the point (4,2) and is perpendicular to the line 4x+3y=21

Solve the equation w^3 = 1,000 i honestly dont know how to punch this into a calculator pls

Orly uses 2 cups of raisins for every 12 cups of trail mix she makes. how many cups of trail mix will she make if she uses 8 cups of raisins?

For what value of (y) is 3^3/3^y =1/9