1. (2021·南岗模拟) Mrs. Green will buy something on sale today. All the things will be 20% off. According to the table, she may spend ______________ dollars buying vegetables less than usual.

Shopping List	Potatoes (2 kilos)	Tomatoes (1 kilo)	Eggs (3 kilos)	Meat (2 kilos)
Usual price ($/kg)	1.5	3	5	2.5