Answer
Company A pays $\$ 600$ more.
Work Step by Step
We know that $a_n=a_1+(n-1) d$
Here, we have $a_{10}=23000+1200(10-1)=33800$
and $b_{10}=26,000+800(10-1)=33,200$
Thus, it has been seen that $a_{10} \gt b_{10}$
Now, $a_{10}-b_{10}=33,800-33,200=\$ 600$
Thus, Company A pays $\$ 600$ more.
