An element with a mass of 650 grams decays by 13.2% per minute. To the nearest minute, how long will it be until there are 220 grams of the element remaining?

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?

Describe a situation where it would be beneficial to round decimals to the nearest dollar. explain why you would use rounding in that situation.

Agroup of five people go out to eat and buy appetizers and main dishes they decide to split the bill so each person pays 20% of the total cost appetizers are $5 and main dishes are $10 write an expression to show how much each person pays explain it with how to solve the problem