<u><em>Answer:</em></u>
Money collected from renting the movies on both days = $99
<u><em>Explanation:</em></u>
We are given that the total number of copies is 20 and that the rent of each is $3 a day
<u>1- On the first day:</u>
Number of copies rented = 75% of the number of copies
Number of copies rented = 0.75 * 20 = 15 copies
Money made from renting the copies on first day = 15 * 3 = $45
<u>2- On the second day:</u>
Number of copies rented = 90% of the number of copies
Number of copies rented = 0.9 * 20 = 18 copies
Money made from renting the copies on second day = 18 * 3 = $54
<u>3- Getting the total amount of money from renting:</u>
Total collected money on both days = 45 + 54 = $99
Hope this helps :)