Im don’t understand the question

Which of the following points is collinear with (-2,1) and (0,3)

Divide. write in simplest form 41/6 divided by 10

The ivring berlin learning center would like a possible net profit of $650,000 on its new resource manual it sells to schools. the fixed costs for producing the manual are $780,000 and the variable cost per package is $19.85. if the estimated unit sales are 1,250,000 units, what selling price unit should the ivring berlin learning center try?