Need help!

1. If a bus is travelling at a speed of 60km/hour,how longlshould it take to travel 10km?

2. Write two whole numbers greater than -5 but less than 0.

<------|-----|-----|-----|----->
-10 -5 0 5
*A number line to help you*

3. How much will the lorry driver pay for a load of turf which weighs 2.75 tonnes?

Three lights go on together one changes every 5 sec one every 6 sec one every 8 sec when will they all go on together