Answer: The Customers have to spend $4000 in order to raise $1000 for the pet rescue program.
Explanation:
Hi, to answer this question we have to write a proportion.
Proportion = money spent / money raised for the pet rescue program
For every $120 that customers spend, $3: 120/3
To raise $100 : x / 100
Where x is the money that customers spent to raise $100 for the pet rescue program.
Solving for x:
120/3 = x /100
(120/3)100=x
x =$4000