Which expression is equivalent to 1/3(5x+3y)+2/5y+7?
A5/3x+7/5y+7
B)15x+9 2/5y+9
C)5/3x+2/5y+7
D)15x+2/5y+7
A5/3x+7/5y+7
C)5/3x+2/5y+7
D)15x+2/5y+7