Answer:
$66,000
Step-by-step explanation:
40% of Hill's November sales will be collected in January: $90,000 x 40% = $36,000.
30% of Hill's December sales will be collected in January: $100,000 x 30% = $30,000.
The total amount that should be collected in January including both November and December sales is $66,000 (= $36,000 + $30,000).