Answer:
20-8 = 12 , he waste $12 if he got 4 cans 12 divide by 4 equal 3 so the one can cost $3
Step-by-step explanation:
c
=1/81
=3
=
3a^6, -2a^5, +1a^4
C
y < 5 and y < 2 over lap at y < 2