a group of 5 friends is out to dinner Each of the friends will order the dinner special and they have a coupon for $10 off the entire bill which equation can be used to find the total cost of all the dinners after the coupon is applied.

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.

Barbara deposited $300 in the bank. if the bank pays her simple interest at the rate of 4 percent per year, how much money will she have in her account at the end of 9 months?

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers