Shawn wants to make a perimeter of the sentence like your 2.5 times its current size what size Factory should he use to dilate the dimensions of the fence

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.