60 is your answer to your question
If Mike has 15.68 pounds of aluminum, and he wants to take at least 50 pounds of said item, then he would need to collect 34.32 more pounds of aluminum. (50 - 15.68 = 34.32)
Just multiply them together 0.67 x 0.3 = 0.201
-w+4(w+3)=-12
-w+4w+12=-12
3w=-12-12
3w=-24
w=-8
HOPE I HELPED!!!
