In a manufacturing unit, heat going up a boiler flue is captured and used to pre-heat returning condensate. What type of manufacturing system is this?

x+2 because it just doubles hon so the pattern can actually tell you the expression.

so for example,

if x=2 then 2+2 is 4

if x=4 then 4+4 is 8

and so on and so forth.

i really hope that this makes sense and you out in a way hon: )

answer:

on fri feb the green land, the only one who can

answer: i want to be brainest and get free points

explanation:

answer:

person b

explanation: