Part a find ratio a and b if given that 7a=3b 5a+3b=6b a+b=4a a+2b/11=b/3 a+3b/5=a-2b/2 part b if a/3=b/2 what are the following ratios? a: b b: a 5a: 3b a+b/b a+b/5a 3a-3b/a-b if completed all of them. first will be awared brainist and will get 5 stars