Question

isabella earns a weekly amount, n, from selling lemonade and receives an additional amount of $10 from her parents each week. after 8 weeks, she has $240. how much does she earn per week from selling lemonade? $20 $250 $31.25 $28.75

Explanation:

Step1: Define total earnings formula

Let \( x \) be weekly lemonade earnings. Total weekly earnings: \( x + 10 \). Over 8 weeks: \( 8(x + 10) = 240 \).

Step2: Solve for \( x \)

Divide both sides by 8: \( x + 10 = \frac{240}{8} = 30 \). Subtract 10: \( x = 30 - 10 = 20 \).

Answer:

$20$ (corresponding to the first option, e.g., A. $20$ if options are labeled)