Evaluate the series :
Evaluate the series : ¿ (n+4)
x=1

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What numbers are included in the set of integers? what numbers are not included?

Boris needs to buy plastic spoons. brand a has a box 42 spoons for $2.37. brand b has a box of 72 spoons for $3.57. find the unit price for each brand. then state which brand is the better buy based on the unit price. round your answer to the nearest cent.