Bob has to hire someone to fix his garden.  A storm destroyed all 20 of his rose bushes.  He decides to replant all the rose bushes.  Each rose bush costs $150.  He also needs to pay a gardener $30 an hour, 5 hours each day for 4 days.  The final expense is 100 cubic feet of soil sold for $5 per cubic foot.  How much did the entire gardening project cost?
Give me a solution to this problem