C(x) = $100 + $35x :)
Answer:
Price after sale: $4.04
$0.71 saved
Step-by-step explanation:
-3(3/6) + 4(3/5)
-3(1/2) + 4(3/5)
-3/2 + 12/5
-15/10 + 24/10
9/10
your answer is "17.6666666667"
i guess it's the second one, 16x2+9y2, since they are both raised to 2 and they are binomial