How many moles are in 8.30*10^23 molecules of H2O?

Write in standard form 7y = 9x + 10

Kennedy earns $8 each time she babysits her little sister Leslie. If Kennedy babysits Leslie 9 time, how much money will she earn?

Carmen wants to know the favorite lunch menu among 6th grade students. Which types of survey below would give Carmen valid results?

A full waterbed mattress is 7 ft by 4 ft by 1 ft. If water weighs 62.4 lb/ft3, what is the weight of the water in the mattress to the nearest pound? How can you determine the amount of water the mattress can hold?

Determine the unknown side lengths

What is 2/7 equivalent to

Justin horse weighs 600 kilograms. How much does it weigh in grams

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.