if x:y = 1:7, then find the value of
(7x+3y):(2x+y)  Choose one:	A) 14:5	B) 15:5	C) 28:9	D) 17:5	E) None of these
Explanation:   let x = 1k and y = 7k, so   =7(k)+3(7k)/ 2(k)+1(7k)   =28k/9k   =28:9   Option 28:9
<result>C</result>
if x:y = 1:7, then find the value of
(7x+3y):(2x+y)