If `b/a=0. 25` , then what is the value of `(2a-b)/(2a+b)+2/9` ?

If a+b=6, a-b=2 then what is the value of 2(a^(2)+b^(2)) ?

If 2A = 3B , then what is the value of (A + B)/A?

If 5b=6a+16 and 9b=7b-20 , then what is the value of 3a-2b ?

If a b+b c+c a=0 , then what is the value of (1/(a^2-b c)+1/(b^2-c a)+1/(c^2-a b)) ? (a) 0 (b) 1 (c) 3 (d) a+b+c

If a+b+c=0 , then what is the value of (a^(2)+b^(2)+c^(2))/((a-b)^(2)+(b-c)^(2)+(c-a)^(2)) ?

If aneb and (a^(2)-b^(2))/(9)=a+b , then what is the value of a-b ?

If 2a+b=8 , what is the value of 9^(a)3^(b) ?

If (a-b)/(b)=(2)/(3) , what is the value of (a)/(b) ?

If (2a)/b =1/2 , what is the value of b/a ?