This can be solved by finding the number of permutations of the eight performers who will all perform before the one who insists on being the last.
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A: How many text messages would you have to send or receive in order for the plans to cost the same each month?
Answer: 100
Step-by-step:
$.20x100=$20
$40+$20=$60
b: If you send or receive an average of 50 texts each month, which plan would you choose?Why?
Answer: A
Because $.20x50=$10
$40+$10=$50
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Subtract the 7 from 8, which would then get you...
Step-by-step explanation:
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