A company provides the following information for manufacturing overhead:

a$.$ Calculate the variable cost per unit of activity using the high$-$low method $(3$ points$)$:

high$-$low method

b$.$ Calculate the company's fixed manufacturing overhead $(4$ points$)$:

Fixed manafactunngot

$8,804$

c$.$ Calculate the total estimated manufacturing overhead at an activity level of $1,100(4$ points$)$: