The equivalent expression is 4x + 20
Your answer would be 4.23 as the answer will be a long one, estimated.
You put 15 over 65 is equal to 50 over x, then you multiply diagonally so 15x = 3250 then you divide both sides by 15 to get 216.67 which means 50 pencils equals 2.17 dollars
X=9,1. If this helped, please like