Expand the expression using the binomial theorem and pascal's triangle: (3x-1)^3

There's a big ski event at the south pole to show off her mad skiing skills a pretty yeti name betty wants to rent some penguins skis but she doesn't want to spend more than 150 fish dollars for the rental normally the rental fee for penguin skis is 225 fish dollars. but today there's a special offer 45% discount tax 8% after discount what is the percent difference between the original price she wants to spend in the special offer for today

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.

Measure of angles 31 (x+4) (3x+9) me