Rodolpho uses a prepaid gas card to spend $35 each week for gas. after the first week, he has $140 left on the card. after everything he second week he has $105, and so on. which equation represents the cash balance on his card after t weeks

C=175-35t

Step-by-step explanation:

Each week - $35

After the 1st week - has $140 left

So, at the beginning of the first week he has $140+$35=$175 on the card.

Now,

Initial amount of monay = $175

Spent each week= $35

Number of weeks = t

Spent in t weeks =$35t

The cash balance C on his card after t weeks =$175-$35t (left)

So, the equation is

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step-by-step explanation: