Answer:
He saved $25.
Step-by-step explanation:
- If Rob saves $5 for every $16 he earns, he is saving the folowing franction of his income:
. - Then if his income equals $16, he will save
. - If his income is $80, he will save

- Another way to understand this problem would be to think that
. Then, receiving $80 is the same as receiving 5 times $16. If he saves $5 for every $16 he receives, he would save 5 times $5 = $25.
The first and the last ones are tge only functions
Answer:
2150 maybe
Step-by-step explanation: