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Exam-style Millie's patio is in the shape of a trapezium.
5m height
3m base
3m height
She wants to pave it with stone paving slabs.
The slabs are sold in bulk or individually.
A 5 m² pallet costs £200 and individual slabs cost £45.
An individual slab is 0.5 m² in size.
Millie has £550.
Does she have enough money to pave the patio?
You must show how you get your answer.