Tam giác ABC cân tại A, BC=120cm, AB=100cm. Các đường cao AD và BE gặp nhau ở H a, Tính độ dài AD?
b, Tính độ dài HD, BH
c, Tính độ dài HE

What is the ordered pair of m’ after point m (5, 6) is rotated 90° counterclockwise?

Pamela has a 30-year, 5.75% mortgage on her $250,000 home. she has been paying on it for 5 years, and has recently hit some financial trouble. if her lender agreed to lower the interest rate on her $231,905.47 balance to 5.5%, what will her new payment be for the remainder of the loan?

Anne plans to increase the prices of all the items in her store by 5%. to the nearest cent, how much will an artist save if the artist buys a canvas and a frame that each measure 24 by 36 inches before the price increase goes into effect?