if the cost of 60 pens is 540.then find the cost of 9 pens
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0
Answer:
The value of the polynomial -7xy³+ 5xy, when x = -2 and y = 3, will be _____.
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2
Answer:
₹ 81
Step-by-step explanation:
cost of 60 pens = ₹ 540
cost of 1 pen = 540/60
= ₹ 9
so, cost of 9 pens = 9 x 9
= ₹ 81
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