PLZ HELP!! Is each statement true or false? Explain your reasoning.

45/100⋅72=45/72⋅100

16% of 250 is equal to 250% of 16

BTW: you don't have to actually explain anything. It would be helpful though

Money off coupons have been circulated to 300 households. only 2/5 of these were redeemed (used) in the local supermarket to get a free shampoo. what fraction of coupons were unused? (ps: write how you got the answer)

Mrs. avila is buying a wallpaper border to go on all of her kitchen walls. she wants to buy 5 extra feet of wallpaper border than she needs to be sure she has enough. she buys 55.5 feet of the border. the store owner selling the border uses the width of mrs. avila's kitchen to determine that the length of her kitchen must be 14.5 feet.

Which of the following expressions cannot be simplified to x – 2?