Which of these is a unit rate?

A 18 students in a class

B 18 students in 18 chairs

C 18 students in 6 rows

D 18 students in 2 reading groups

If you brush your teeth 10minutes a day, about how many hours do you brush in a year

How to solve 3/7+3/14

What fraction of 2 pounds is 50 pence

A home repair crew truck is $65 per day plus for 157 for each hour the crew works. one day the crew worked extra hours and chargers a total amount of $1949. how many hours did the crew work?

Write 0.000970 in scientific notation

Tiffany and Adele sold cookies and brownies to raise money for their school. They sold a total of 25 sweets. If each cookie costs 1$ and the brownies cost a 1.50 each and they made a total of 32$, how many did each sell?

To make 4 serving of chicken noodle soup, Lacey uses 6 cups of broth, 2 cup of noodles, and 1 cup of shredded chicken. How much broth would she need to make 18 servings?

Emily has 8450 trees to plant in rows on his tree farm. he will plant 125 trees per row. how many rows of trees will he have

Luke has a life insurance policy that will pay his family $29,000 per year if he dies. If interest rates are at 5.

Compute the variation of each predicted population mean from the sample means in the table. Sample 1: Sample 2: Sample 3: