Apet store currently has a total of 45 cats and dogs. there are 7 more cats than dogs. find the number of cats and dogs in the store. write and solve a system of equations that represents the situation. interpret the solution

Translate the word phrase into a math expression. 15 fewer than the product of 4 and a number. (pls immediately)

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.

Suppose y varies directly with x. write a direct variation equation that relates x and y. then find the value of y when x=12 y=7 when x=3