There are 20 pens in a package. ten of the pens are black, 8 are blue, and the rest are red. which ratio represents the number of red pens to black pens?
a.1/10
b.1/5
c.4/5
d.5/1

Customers at your store select their groceries from shelves and then pay. sales records and records of restocks for flaming roast coffee (1 lb size) are as follows: number of bags tue wed thu fri sat sun mon sales  5  8  2 19 22 15  3 restock  6 12 12 18 24  0  0 what is the net change in how many bags are on the shelf, from the beginning of tuesday to the end of monday? (note: a negative number indicates a decrease.) –22  –2   0   2  36