Turn 13/3 into a mixed number

Write and solve a real word problem that involves determining distance on a coordinate plane

Collin did the work to see if 10 is a solution to the equation r/4=2.4

Which of the following questions describes the equation g + (-4) = -5? a)what number, when added to negative four, is equal to negative five? b)what number, when added to negative five, is equal to negative four? c)what number, when subtracted from negative four, is equal to negative five? d)what number, when subtracted from negative five, is equal to negative four?