Answer:
It 20.54 round to the nearest tenth which is 20.5
Step-by-step explanation:
7840-group all the same denominations together like this: 6 thousand + 1 thousand is 7 thousand, 5 hundred +3 hundred is 8 hundred and 4 tens 4 times 10, means count by tens.
18-7=11
11x2=22
Melanie started with 22 comic books.
