Cell phone company is offering 2 different monthly plans. Each plan charges a monthly fee pulls an additional cost per gigabyte of data used. Plan A: $50 fee plus $7.50 per gigabyte of data
Plan B: $60 fee plus $5.00 per gigabyte of data

a.
Write an expression to represent the cost of Plan A.

b.
Write an expression to represent the cost of Plan B.

C
Which plan would be the least expensive for someone who uses 6 gigabytes of data?

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.

she would want to sell 10 full-year subscriptions and at least 9 half-year subscriptions to get a total of at least $300. 

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step-by-step explanation:

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4

step-by-step explanation:

im pretty sure it's 4 beacsue 8/2 equals 4

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