Ella is buying a $110 chair. She has a coupon for 15% off. How much does she pay for the chair if sales tax is $6

Which expression shows the sum of the polynomials with like terms grouped together

Rena is building a 1: 180 scale model of a real castle. her model has a rectangular base that is 3 feet wide and 4 feet long what is the area of the base of the actual castle in square feet

Can someone show me step by step how to do this?