Use a half-angle identity to find the exact value of tan 157.5 degrees

Simplify.7x + 3y - 2 + 6x + 1 + y squared 2 you! ; )

We have enough material to build a fence around a station that has a perimeter of 180 feet the width of the rectangular space must be 3 1/4 feet what must the length be

Aboat costs 19200 and decreases in value by 12% per year. how much will it cost in 5 years