HELP ASAPPPP

Answer: $-53$

The common difference is $-84-9\over32-5$, which is -93/27, or $-3\frac49$.

This means that the 23rd term is 9 $-3\frac49$(23-5), which is $-53$.

Edit: I forgot to add an explanation for anything, and I'm low on time right now. See if you can understand the following:

The common difference is the $n_{2}-n_{1}\over t_{2}-t_{1}$, where t is the term number ($t_2$ being farther in the sequence) and $n_{2}$ being the number that $t_{2}$ is, and same with $n_{1}$and $t_{1}$. The xth term will be $n_{1}$+ the common difference x (x - $t_{1}$).

So basically the formula for any question like that, if I am thinking correctly, and assuming all the variable are as meantioned earlier in the eplanation is:

$n_{1}+$$n_{2}-n_{1}\over t_{2}-t{1}$$\cdot (x-t_{1})$.