Answer:
\(\frac{9}{5}y+9\)
Step-by-step explanation:
Note that 3 and 15 are divisible by 3, hence we can factorize 3 form the term in the parenthesis,
\(\frac{3}{5}(3y+15)=\frac{3}{5} \cdot 3 (y+5)=\frac{9}{5}(y+5)\)
distribute \(\frac{9}{5}\) and we get
\(\frac{9}{5}(y+5)=\frac{9}{5}y+9\)