If -2+y^3-xy=0 then find the equations of all tangent lines to the curve when y=2

You can find the constant of proportionality by finding the ratio of

Find the values of y: 3y^3(y^2+ 2/3y)=0

Julie goes to the sports store and spends $40.50 before tax. she buys a pair of shorts for $21.75 and 3 pairs of socks that each cost the same amount. how much does each pair of socks cost? $$