If y varies directly as (x+3) and inversely as (x-3) and y=21 when x=4, what is the equation for y in terms of x?

Which word in the sentence below is an interrogative pronoun? who is picking us up from school? whousisfrom

Darragh has a golden eagle coin in his collection with a mass of 13.551\,\text{g}13.551g. an uncirculated golden eagle coin has a mass of 13.714\,\text{g}13.714g.

The perimeter of a quarter circle is 14.28 miles. what is the quarter circle's radius?