MARKED BRAINLIEST!!
A certain solution of salt water is 10% salt and weighs 50 pounds. More salt must be added to produce a solution that is 25% salt.

If x represents the pounds of salt to be added, which of the following expressions represents the number of pounds of salt in the 25% solution?
A)0.25(x+50)
B) 0.25x
C) 1.25(x+50)