What is the HCF of two consecutive odd numbers? for 50 points

The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers

This is a map of the mars exploration rover opportunity predicted landing site on mars. the scale is 1cm : 9.4km. what are the approximate measures of the actual length and width of the ellipse? i mostly need to know how to set it up : )

X-10/4 when x = –18 a 7 b –2 c –7 d 2