Write the formula for the circumference of a circle. Using Pi instead for the symbol

Which expresions are equivalent to the one below? check all that apply. 5x

Solve - pv + 40 < 65 for v solve 7w - 3r = 15 for r

Identify the converse of the following conditional: if a point is in the first quadrant, then its coordinates are positive. if the coordinates of a point are not positive, then the point is not in the first quadrant. if the coordinates of a point are positive, then the point is in the first quadrant. if a point is in the first quadrant, then its coordinates are positive. if a point is not in the first quadrant, then the coordinates of the point are not positive.