What quantity of 63% hydrochloric acid solution must be mixed with a 21% hydrochloric acid solution to produce 1350 ml of 28%
solution?

dude   i don't even know. i've been trying for hours.

step-by-step explanation:

c

c

c

c

c

c

c

cc

c

step-by-step explanation:

1/3

step-by-step explanation:

to find this, you can divide 12 by 4 which is 3 or you can multiply 4 until you reach 12 (4x3=12). both should give you 3, meaning theres three times less bananas than there are oranges.