Question

1. a student has $50 and saves $10 each week. which equation models their total savings s after w weeks?

a ( s = 10w )
b ( s = 50w + 10 )
c ( s = 50 + 10w )
d ( s = w + 50 )

Explanation:

Step1: Identify fixed savings

The student starts with $50, this is a constant value.

Step2: Identify variable savings

The student saves $10 per week, so after $w$ weeks, variable savings are $10w$.

Step3: Combine for total savings

Total savings $S$ is fixed plus variable savings.
$S = 50 + 10w$

Answer:

C. $S = 50 + 10w$