What is the percent of increase from 8,000 to 10,000?

In the rectangle below ac=30 units what is de

Issof claims that the scale factor is 1/2. which statement about his claim is correct

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.