1, 3, -9, 27,
a.
multiply by 3; 81, 243, 729
b.
multiply by -3; -81, 243, -729
c.
multiply by -3; 81, 243, 729
d.
multiply by 3; -81, -243, -729

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You are a clerk at convenience store. a customer owes 11.69 for a bag of potatoes chips. she gives you a five dollar bill. how much change should the customer receive?

The jewelry store is having a sale. necklaces that were regularly priced at $23.50 are on sale for $18.80. what is the percentage of decrease in the price of necklaces?