Question 1208883
<pre>

A store sells packages of comic books with a poster. A poster and 4 comics cost
​$9.99. 

{{{p+4c=9.99}}}

A poster and 12 comics cost ​$17.99. 

{{{p+12c=17.99}}}

Solve the system:

{{{system(p+4c=9.99,p+12c=17.99)}}}

Solve that system and get p = $5.99 and c = $1.00

So, a linear function rule that models the cost y of a package containing any
number x of comic books is

{{{y}}}{{{""=""}}}{{{"1.00"x+5.99}}}  (You can omit the 1.00)

{{{y}}}{{{""=""}}}{{{x+5.99}}}

Edwin</pre>