Assuming we want to factor the formula to (x+3)(x+3), you want to have a +9 where there is a -4 now. So you must add 13.
$29 will be their consumer surplus.
Consumer surplus is the difference between how much a consumer is willing to pay and how much a consumer actually does pay.
$12.00 + $15.00 + $23.00 = $50.00 (How much the consumer actually pays)
$23.00 + $26.00 + $30.00 = $79.00 (How much the consumer is willing to pay)
$79.00 - $50.00 = $29.00 (Consumer surplus)
The answer is d because 17-7 is 10 so it would be 5a <10
The answer is 1/5
hope this helps
Terminating because the decimal ends rather than going on forever which would be repeating