Astore sells only black and blue pens. the store sold 300 black pens last week. this was 2/5 of the number of pens sold. how many blue pens were sold?

Hi,


There ware 450 blue pens sold.

Hope this helps.
r3t40

Answer: the correct answer is 10step-by-step explanation: let the number be n, then the expression becomes,then“twelve more than the quotient of a number and two, decreased by four” iswhen n=4,we substitute 4 whetever we see n to get,we simplify to obtain,we further simplify to get,therefore the correct answer is c.