Answer:
The number of coupons Querida gave away in Sunday is proportional to the number of hours she worked that day.
Explanation:
It is provided that on Sunday Querida gave away about 52 coupons an hour.
Compute the number of coupons given away for different hours as follows:
Number of hours : 1 2 3 4
Number of Coupons : 52 104 156 208
Compute the number of coupons given away per hour provided that Querida worked 2 hours, 3 hours and 4 hours on Sunday as follows:



Thus, the number of coupons Querida gave away in Sunday is proportional to the number of hours she worked that day.