1 12
inch larger than the hole. Let d equal the size of the hole he should drill. Solve the equation
Miguel wants to drill a hole for a -inch screw. The screw should be
8
d+
to see what size the hole should be.
12 8
da
in

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?