What is the image of (-3,-9) after a reflection over the x-axis?

Question and answers are in the attached picture. you so much in advance.

Antonia and carla have an equivalant percentage of green marbles in their bags of marbles. antonia has 4 green marbles and 16 total matbles. if carla has 10 green marbles , how many total marbles does carla have

The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers