How many proportional relationships are shown in the coordinate plane below? Choose 1 answer A-0, B-1,C-2,D-3

When i add money am i supposed to make it like this 7+12 or 7.00+12.00 because i got 19 dollars for my answer

3382-299=3383- ? fill in the blank?

Moira has a canvas that is 8 inches by 10 inches. she wants to paint a line diagonally from the top left corner to the bottom right corner. approximately how long will the diagonal line be?