How do the values of 5s in 581.03 and 5.472 compare

Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.

Cody ran nine miles on his first day of training. the next day he ran 1/8 that distance. how far did he run the second day?

Asandwich shop has 18 tables. each table seats up to 4 people. to find the greatest number of people that can be seated, you can solve p4 ≤ 18. which step is the best way to solve the inequality? plz asap i repeat plz