4. the area of a circle is 9m². calculate the circumference of the circle.

If you could answer these your a life saver

How do you determine if an ordered pair is a solution to a given equation?

The ivring berlin learning center would like a possible net profit of $650,000 on its new resource manual it sells to schools. the fixed costs for producing the manual are $780,000 and the variable cost per package is $19.85. if the estimated unit sales are 1,250,000 units, what selling price unit should the ivring berlin learning center try?