N is an odd number. Which statements are true?
You must get them all correct to get any marks.
A: n2 – 1 is odd
B: n(n-1) is odd
C: (n - 1)is odd
D: n2 + 2 is odd
E: n(n - 2) is odd
F: (n − 2)? is odd

Ascale drawing of a lake has a scale of 1 cm to 80 m. if the actual width of the lake is 1000 m what is the width of the lake on the scale drawing

Jack did 3/5 of all problems on his weekend homework before sunday. on sunday he solved 1/3 of what was left and the last 4 problems. how many problems were assigned for the weekend?

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 : )