The cost to buy 18 notebooks and 12 desktop computers will be $8100.
The cost to buy n notebooks and d desktop computers will be 300n + 225d
The cost of a given material is the amount attached and to be paid for getting that material.
From the given information:
The cost to buy 18 notebooks and 12 desktop computers will be:
= 300(18) + 225(12)
= 5400 + 2700
= $8100
The cost to buy n notebooks and d desktop computers will be:
= 300(n) + 225(d)
= 300n + 225d
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