On the coldest night in North Ice, Greenland, the temperature dropped from 0°C to - 21°C-21°C in 7 hours. What is the average temperature change per hour?

The admission fee of a theater is $2.50 for adults and $1.25 for children. On a certain day, 700 people went to the theater for a concert and $1375 was collected. How many children and how many adults attended the concert

Is - 1.4 bigger than - 1/2

Simplify the polynomial expression (-2m2 + m - 15) - (4m2 + 7m - 2)

One person earns $63,000 per year. Another person earns $2550 per month. How much more does the first person earn in a year than the second?

What fraction is larger 1 1/6 or 1 4/12

A woman is traveling with a wolf, a goose, and a mouse. She must cross a river in a boat that will only hold herself and one other animal. If left to themselves, the wolf will eat the goose and the goose will eat the mouse.

Does - 3 (x-4) = - 3x=12 have one solution, many solutions, or no solutions at all?

Solve the inequality - 6>-2/3

How is adding integers similar to adding whole numbers how is it different?

Preston drew a blueprint of an additional room he is planning to add to his house. On the blueprint, 2 centimeters is equal to 3 feet in the actual room.