Question

item a does 51 of item c
item b does 20 of item c
at what amount does item a and item b hit the same amount of item c....im drawing a complete blank on doing this due to insomnia kicking in some1 mind helping

Answer 1

if n e thing i just need a formula and i can do the rest just im trying to not write the entire thing out to get the answer itd take me forever