The computation shows that the amount lost in a week is $49.
From the information, Red lost money on an investment at a rate of $7 per day.
It should be noted that there are 7 days in a week. Therefore, the amount lost will be:
= $7 × 7
= $49
The amount lost is $49.
Learn more about computations on:
brainly.com/question/4658834
#SPJ1