4. 30% to 50% of the money is for frozen food, a
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T=3vs-4ws+5vw
add 4ws to both sides
T+4ws=3vs+5vw
factor out v
T+4ws=v(3s+5w)
divide both sides by 3s+5s
add 4ws to both sides
T+4ws=3vs+5vw
factor out v
T+4ws=v(3s+5w)
divide both sides by 3s+5s