Which of the following is an example of a certain event? a. drawing a penny from a bag containing only pennies and dimes b. drawing a quarter from a bag containing only pennies, nickels, and dimes c. drawing a nickel from a bag containing only nickels

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.

Sum is 17 and their difference is 3

3x = 729 solve for x plz . it's urgent. will mark