Answer:
A. 6 to 7
Step-by-step explanation:
18 : 21 then you simplify
6 : 7
A 6 to 7
18 divided by 3 is 6
21 divided by 3 is 7
6 x 1/3 = 2
90
90 * 70% = 63
Option A
multiple each coordinate by 1/2