Domestic: 2400×75%= 1800 vehicles.

2、( 1-25%)÷( 1/6+ 1/9)

=3/4÷5/ 18

=2.7 hours

3、8+2= 10

3. 14×( 10× 10-8×8)

=3. 14×36

= 1 13.04 m2

4. Number of fifth-grade students: 24÷20%= 120.

1+9= 10

Experimental primary school * * * has students:120 ÷110 =1200.