Answer:
Relation 3 is a function and Relation 4 is nog
248,700
682 is closer to 700 than to 600
2789 dimensions because it’s simple u multiple them
Since it includes 11% sales tax, this means that (purchase)+11% of (purchase)=25.00. Since 11% = 0.11 by multiplying it by 1/100, we have 1*purchase+0.11*purchase=1.11*purchase=25.00. Dividing both sides by 1.11, we get around 22.73 as the original purchase. This means that the difference between the purchase price and the total price is the sales tax, which is around 2.27 dollars.
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The answer would be 78. C