$1.$ Suppose that the market can be described by the following three sources of systematic risk with associated risk premiums. The return on a particular stock is generated according to the following equation: $\backslash [$ r$=15\backslash \%+1\mathrm{.}0$ I$+\mathrm{.}5$ R$+\mathrm{.}75$ C$+$e $\backslash ]$Suppose that the market can be described by the following three sources of systematic risk with associated risk premiums.

The return on a particular stock is generated according to the following equation:

$r=16\%+\frac{1\mathrm{.}6}{+}0\mathrm{.}8R+1\mathrm{.}30C+e$

a$-1.$ Find the equilibrium rate of return on this stock using the APT. The T$-$bill rate is $4\%.($Do not round intermediate calculations

Round your answer to $1$ decimal place.$)$

Equilibrium rate of return