What is the value of y to the nearest tenth?

Add steps if you can!!

Select all the expressions that will include a remainder.

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.

What is 140 squared pleas me i am dumb