Answer:Aliyah will pay the cashier $1800Step-by-step explanation:Let the original total cost of the items be $x. Given that Aliyah received a 30% discount, she paid 70% of the original cost. 0.7x = $1800 x = $1800 / 0.7 x = $2571.43 Therefore, the original total cost of the items was $2571.43. Since Aliyah received a 30% discount, she will pay 70% of the original cost: 0.7 * $2571.43 = $1800