zeke and brandon each get $5 from their grandmother every saturday. after 13 weeks, zeke had a total of $13…

zeke and brandon each get $5 from their grandmother every saturday. after 13 weeks, zeke had a total of $13, and brandon had $55. approximately what percent of his 13 - week allowance did zeke spend?\na 84%\nb 80%\nc 20%\nd 15%
Answer
Explanation:
Step1: Calculate Zeke's total allowance
Zeke gets $5 per week for 13 weeks. So the total allowance is $5\times13 = 65$.
Step2: Calculate the amount Zeke spent
The total allowance is 65 and he had 13 left. So the amount spent is $65 - 13=52$.
Step3: Calculate the percentage spent
The percentage spent is $\frac{52}{65}\times100%$. Since $\frac{52}{65}=0.8$, then $0.8\times 100% = 80%$.
Answer:
B. 80%