A delivery company uses vans to transport packages between cities. One of the vans travels at a constant speed of 50 km/h for 3 hours without stopping. The manager wants to know the total distance traveled in order to calculate fuel consumption and delivery time.[br]How far does the van travel?

During a science experiment, water is heated in a laboratory container. At the beginning of the experiment, the water temperature is 20°C. After several minutes of heating, the temperature reaches 85°C. The students must determine how much the temperature increased during the experiment.

During a physical education class, a teenager measures their heart rate while exercising. The heart beats 78 times per minute. The coach asks the students to calculate how many heartbeats occur during 5 minutes of exercise.

A family wants to reduce water waste at home. They discover that they use approximately 120 liters of water every day for cooking, cleaning, and washing. To better understand their weekly consumption, they calculate the amount of water used in 7 days.[br]How much water does the family use in one week?