Answer: 60
Step-by-step explanation: If you buy your lunch every day for 1 week, that would be 20 dollars spent. If you spend 20 dollars in 1 week, then 3 weeks would be 60.
Let me know if I'm right!
If you buy lunch everyday at school for $4 thats $20 a week, and $60 in 3 weeks.
The answer to this question is $60.
$4 x 5 = $20
$20 x 3 = $60