Question

Suppose that you plan on taking a summer job selling magazine subscriptions. The magazine company will pay you $1.25 for selling the first subscription. For each
additional subscription sold, the magazine company will pay you 5 cents more than what was paid for the previous subscription. How much will you earn by selling
150 magazine subscriptions?

PLEASE HELP

Answer 1

Answer:

Answer $187.5

here you go

Step-by-step explanation:

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Answer 2

• here a=1.25
• d=0.05

$\\ \bull\tt\dashrightarrow a_{150}=a+149d$

$\\ \bull\tt\dashrightarrow 1.25+149(0.05)$

$\\ \bull\tt\dashrightarrow 1.25+7.45$

$\\ \bull\tt\dashrightarrow 8.70$

• l=8.70

$\\ \bull\tt\dashrightarrow S_n=\dfrac{n}{2}[a+\ell]$

$\\ \bull\tt\dashrightarrow S_{150}=\dfrac{150}{2}[1.25+8.70]$

$\\ \bull\tt\dashrightarrow S_{150}=75(9.95)$

$\\ \bull\tt\dashrightarrow S_{150}=745.46$

You will receive $746.46.