Plez help Consider the infinite geometric series below. a. Write the first 4 terms of the series

b. Does the series diverge or converge?

c. If the series has a sum, find the sum.

[infinity]

∑ (−2)^n-1

n=2

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Becca wants to mix fruit juice and soda to make a punch. she can buy fruit juice for $3 a gallon and soda for $4 a gallon. if she wants to make 28 gallons of punch at a cost of $3.25 a gallon, how many gallons of fruit juice and how many gallons of soda should she buy?