Please help me with a good hourly rate to charge?

Im starting a small business to make a little bit of pocket money from time to time,and I need hourly rates or single prices for all of the following jobs:
Dogwalking:?/ per walk
Dogsitting: ?/ an hour
Babysitting: ?/ an hour
House work: ?/per job
Car washing: ?/per car
Any suggestions would be helpful,especially if you've done these types of things when you were younger...Thanks! xx

i would say
per dog walk- £4
dog sitting per hour- £4
baby sitting per hour- £5
house work per job- £3
car washing per car-£5
i think these are reasonable rates to start you off :)