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Question

Difficulty Level:

Easy

MCQ

Emerson has $120$ dollar. Each week, he saves an additional 15 dollars.

Write a function $f(x)$ that models the total amount of money Emerson has after $x$ weeks.

Select all that apply :

$f(x)=120+15 x$

$f(x)=120-15 x$

$f(x)=15+120 x$

$f(x)=15-120 x$

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