Could someone please help me with this question.. i'm not sure what i need to add to get full marks :|

Which of the following transformations will always produce a congruent figure?

2/3(-6y+9x) expand each expression using the distributive property

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.