How to calculate ten percent of something?

The half - life of Barium-137m is 2.552 minutes. How much of an 18 gram sample would be left after 10 minutes

Which movement's primary goal was the ratification of a constitutional amendment authorizing prohibition?

A number increased by 3 and then multiplied by 5 is at least - 10. What are the three lowest natural number values this can be?

Determine which equations below, together with the equation x-y=2, will form a system with no solutions. y=5 x-y=4 x+y=2 y+x=2

Write down a number you can square to give an answer bigger than 900 but smaller than 1000

Lisler Ellen has a total of 18 apples on her apple tree. She wants to give each of her neighbors 3 apples. Which equation can be written to determine the number of neighbors, X, that Ellen can give apples to? 1 18-x = 3 2 18 x 3 = x 3.

Howdy! (づ｡◕‿‿◕｡) づ Abe took a total of 15 quizzes over the course of 3 weeks. How many weeks of school will Abe have to attend this quarter before he will have taken a total of 35 quizzes? Solve using unit rates.

Suppose the population of a town is 2,700 and is growing 4% each year. a. Write an equation to model the population growth. b. Predict the population after 12 years.

Use a graph to determine the number of solutions of the system. $y=2x+1$ $y=2x+5$

F (x) = 1/4 x for x = - 5