Answer
-8x^2+14x+14
Step-by-step explanation:
instructions included above :)
Answer:
dvd cost 36 dollars
casette costs 10.5 dollars
Answer:
$5.46
Step-by-step explanation:
<em>If you need help with percentages you can look up percentage calculator it might help you.</em>
Answer:

.
Step-by-step explanation:






Answer:
x = -6
-18+4y=0 => 4y=18 =>y=18/4=9/2
Y=5
3x+20=0 => x=3x= -20=> x= -20/3
Step-by-step explanation: