15. Sam wanted to know how much the price of milk had changed over the last few decades. He

found that the price of a gallon of milk was $0.80 in 1970 and in 1990 it was $1.20. What

was the average rate of change in a gallon of milk per year?

Do not enter $ in your answer. Make sure to include a negative sign if annlicable

With this question substitute t=3 and t=5 to determine if the two expressions are equivalent. 4(t + 3) 4t+12 which statements are true? check all that apply. a. the value of both expressions when t =5 is 32. b. the two expressions are not equivalent. c. the value of both expressions when t=3 is 15. d. the value of both expressions when t=5 is 23. e. the two expressions are equivalent. f. the value of both expressions when t=3 is 24.