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

Which system of linear inequalities is graphed? can somebody pleasssse

Which of the statements about the graph of the function y = 2x are true? check all of the boxes that apply. the domain is all real numbers x because the exponent of 2 can be any real number when the x-values increases by 1 unit, the y-value multiplies by 2. the y-intercept is (0, 1). the graph never goes below the x-axis because powers of 2 are never negative. the range is all real numbers.

What are the values of a, b, and c in the quadratic equation 0 = x2 – 3x - 2? a = 1, b = 3, c = 2 a=, b = -3,c=-2 a = 1, b = 3, c= 2 a = 1.0= -3, c = 2