There are four taxi firms in a town. Firm B has twice as many cars as firm A. Firms C and D have the same number of cars, which is 2 less than the total number of cars of firms A and B. The total number of cars for all the firms is 50. How many cars does each firm have?

Plz need answer now will mark which situations represent linear functions? check all that apply. a)the temperature rises and falls over the course of a day. temperature is a function of time. b)a baseball is hit into the outfield. the height of the ball is a function of time. c)a car goes 55 mph on the highway. distance is a function of time. d)a child grew 2 inches this year and 1 inch last year. height is a function of time. e)a movie director makes 2 movies per year. the number of movies is a function of the years.

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1