Answer:
18
Step-by-step explanation:
The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
The factors of 18 are 1, 2, 3, 6, 9, 18
The common factors are 1, 2, 3, 6, 9, 18
The greatest common factor = 18
72 factors=1,2,3,4,6,8,9,12,18,24,36,72
18 factors=1,2,3,6,9,18
So HCF = 18
Answer:is this surface area?
(7,-2)
G is currently at (2, 0)
(2+5, 0-2) becomes (7, -2)
