Answer:
$3
Step-by-step explanation:
Given that:
Park charge for one round = $19
Reduced fee for every additional round
Number of rounds played by Tom = 6
Amount paid = $34
Amount left after 1 round :
Amount paid - first round charge
$34 - $19 = $15
Number of rounds left = (6 - 1) = 5
Charge per additional round :
$15 / 5 = $3
x= 6 ± √31
x^2-12x=-5
x^2 -12x +36= -5 +36
(x -6)^2= 31
√(x -6)^2= ±√31
(x-6)= ±√31
A, C, and E are your answers