2. a chef can make 12 meals with
3 pounds of steak. if he plans to
make 250 meals and the steak costs
$6.60 per pound, how much will
the chef spend on steak?
a $137.50
b $400.00
c $412.50
d $550.00

C. $412.50

Step-by-step explanation:

We can use proportion:

12 meals --- 3 pounds

250 meals --- x pounds

x=(250 meals*3 pounds)/12 meals = 62.5 pounds

62.5 pound * $ 6.60/pound =  $ 412.50

people went from manufacturing one object at a time by hand to manufacturing many objects in factories