X is less than or equal to 1
G^5 -g = g(g^4 -1)=g(g^2 -1)(g^2 +1) = g(g-1)(g+1)(g^2 +1)
24g^2 -6g^4 = 6g^2(4 -g^2) = 6g^2(2 -g)(2 +g)
Since the sports card collecting and sports participation is directly proportional.
So,
∴6/3 = x/7
⇒2 = x/7
⇒x=14
∴14 students interviewed do not collect sports cards. Option (C) is correct
25% off of $1400 equal: 1400 + .25 = 350, so 1400 - 350 = 1050
So now the computer with 25 % off is $1050.
tax 7%, means 1050 + .07 = $73.50 (sales tax charge)
Total computer with 25% off plus 7% tax equal:
$1050 + 73.50 = $1,123.50
Amir has saved $1200, so he has enough money to purchase the computer.