Choose the correct answer. average speed of car 1 = 55 mph. average speed of car 2 = 70 mph. time elapsed between start of car 1 and start of car 2 = 4 minutes. how long before car 2 overtakes car 1? hour.

An automated water dispenser fills packets with one liter of water on average, with a standard deviation of 5 milliliter. the manual says that after a year of operation the dispenser should be tested to see if it needs recalibration. a year later a number of filled packets are set aside and measured separately. it is found that the average packet now contains about 0.995 liters. does the dispenser need calibration? explain your answer.

Use the distributive law to multiply. 3(4x + 5y + 6)

Haruka hiked several kilometers in the morning. she hiked only 66 kilometers in the afternoon, which was 25% less than she had hiked in the morning. how many kilometers did haruka hike in all?