If triangle abc is reflected over the x axis which of the following shows the coordinates for point c

The answer is (3,-7)
when looking at the shape, the point is at (3,7). it’s three over and seven above. since it’s being reflected over the x-axis, it’s still going to go to the right by three but instead of going up by seven, it’s going to go down by 7 which makes the coordinates (3,-7)

Is a for each hour he works,his earnings go up by $4