Help plz:)))I’ll mark u Brainliest There were 40 red cars, 24 blue cars, and 16 green cars in a parking lot. What is the ratio of red cars to the total number of cars? (Write your answer as a fraction in simplest form.)

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.

The parabola x = y² - 9 opens: a.)up b.)down c.) right d.)left

Joseph haydn pet store offers wide variety of leashes for dogs. the store purchases one popular type of leash from its manufacturer for $4.38 each. joseph haydn pets marks up leashes at a rate of 238% of cost. what is the retail price of the popular leash?