Necklaces

Mohammad sells beaded necklaces. Each large necklace sells for $4.50 and each small necklace sells for $4.10. How much will he earn from selling 5 large necklaces and 4 small necklaces?

Correct answer:

x =  38.9

Step-by-step explanation:

a=4.5 b=4.10  x=5⋅ a+4⋅ b=5⋅ 4.5+4⋅ 4.1=38.9

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