40 colored pens, 11 are red, 15 are black and the remaining is blue, red to black ratio is

11:15

Hope this helps :D

11:15

Step-by-step explanation:

Sub to Kevin Tuna Music

a) 0.25x times 3. (could be wrong on equation.)

b) 2.25 pound of dark chocolate. (can i eat all the chocolate? plz? anyway, again, could be wrong, but i hope im right. all the chocolate together should be 5.25 pounds)

have a good day!

the answer to this in exact form is 4/35 but in decimal form its 0.1142857

hope this if needed hmu