Stefan was finding the quotients of decimals and powers of ten Here is what Stefan wrote for two problems: 0 2 4 10 0 5 20 0 02 4 10 5 0 2 What did Stefan do correctly? What did he do wrong? What can you tell him to help him divide correctly with powers of ten the next time?

Samantha is growing a garden in her back yard. she spend $90 setting up the garden bed and buying the proper garden supplies. in addition, each seed she plants cost $0.25. a. write the function f(x) that represents samantha's total cost on her garden. b. explain what x represents. c. explain what f(x) represents. d. if samantha plants 55 seeds, how much did she spend in total?

Roger could feed 5 walruses with 4 kilograms of fish. how many walruses could he feed with 7.2 kilograms of fish?

The? half-life of a radioactive substance is 20 years. if you start with some amount of this? substance, what fraction will remain in 120 ? years