8) Sam had one hundred eighty dollars to spend on seven books. After buying them he had twelve dollars. How much did each book cost ? *

$18
$42
$240
$24

Please hurry

Ineed big ! the cost of a school banquet is $25 plus $15 for each person attending. create a table, sketch the graph, and write an equation in slope-intercept and point-slope form that gives total cost as a function of the number of people attending. what is the cost for 77 people?