With wordproblem?

brian's coffee shop makes a blend that is a mixture of two types of coffee. type a coffee costs brian
$4.10
per pound, and type b coffee costs
$5.70
per pound. this month, brian made
173
pounds of the blend, for a total cost of
$859.70
. how many pounds of type b coffee did he use?

Gail is making costumes for a school play. each rabbit costume needs one and one half yards of white fur fabric, a yard of blue striped fabric, and a quarter of a yard of pink felt for the ears. g? ail needs to make eight rabbit man yards will she need, for the white fur fabric, blue striped fabric, and pink felt?

Which of these tables represents a non-linear function?

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.