How can you tell two objects are similar when all you did is make the the object smaller by a scaled factor? a mailbox was dilated by a scale factor of 1/2 how are this 2 object similar?

WILL GIVE AND HEART!!! I SWEAR​

Which is an equation for the nth terms of the sequence 12,15,18,21

Jamie went to home depot.she bought 25 bags of soil that cost $9 per bag.she bought 15 pots at $8 each,and she bought 23 bags of pebbles at $15 each.she used a coupon that gave her $5 off for every 100 dollars she spent.how much did jame pay at the end?

What is the area of the original rectangle? 8 cm² 20 cm² 25 cm² 40 cm²