Jane walks one mile from her house to her grandparents' house. Then she returns home, walking with her grandfather. Her return rate is 60% of her rate walking alone. Let r represent her rate walking alone.

Alake near the arctic circle is covered by a 222-meter-thick sheet of ice during the cold winter months. when spring arrives, the warm air gradually melts the ice, causing its thickness to decrease at a constant rate. after 333 weeks, the sheet is only 1.251.251, point, 25 meters thick. let s(t)s(t)s, left parenthesis, t, right parenthesis denote the ice sheet's thickness sss (measured in meters) as a function of time ttt (measured in weeks).

Need ! discuss how to convert the standard form of the equation of a circle to the general form. 50 points

How do i do this? i don’t understand