# What is the coefficient of 2.4n+9.6?

The coefficients are $2.4$ and $9.6$.
There are technically two coefficients in this expression. The first term, $2.4 n$, the coefficient is $2.4$. In the second term, $9.6$, the coefficient is $9.6$, because technically, the term is $9.6 {n}^{0}$.