Is a decimal less than a whole number?

What is the perimeter of square abcd? units units 28 units 37 units

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

Avery’s piggy bank has 300 nickels, 450 pennies, and 150 dimes. she randomly picks three coins. each time she picks a coin, she makes a note of it and puts it back into the piggy bank before picking the next coin.