Tina’s grandfather put $1000 in the bank for her when she was born. the account has been earning 5.85% interest compounded annually. tina is now 18 years old. how much money is in the account?

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Last month, a 770 g box of cereal was sold at a grocery store for $3.10. however, this month, the cereal manufacturer launched the same cereal in a 640 g box, which is being sold at $2.50. what is the percent change in the unit price?

I’m still confused on how to work the percentages