Stacy's lifelong dream is to meet Lady Gaga in person. After seeing her in concert, she is 100% certain this dream will come true, but for every year that she does not see her live in concert, she is half as sure that it will
really happen. Come up with a function that describes the yearly decay of Stacy's lifelong dream.
Let t = the number of years that have passed without her seeing Lady Gaga in concert and D = the percent
of certainty that her dream will come true.
A. D(t) = 100(1.5)^t
B. D(t) = 100(.5)^t
C. D(t) = 1/2t• 100
D. D(t) =100/2t

Look at this system of equations. -3x + 3y = 12 y = x + 4 the solution set of this system is best explained by which of these statements? a) the graphs of the equations are the same line because the equations have the same slope and the same y-intercept. the system has infinitely many solutions. b) the graphs of the equations are parallel lines because they have the same slope but different y-intercepts. the system has no solution. c) the graphs of the equations are lines that intersect at one point because the equations have the same slope but different y-intercepts. the system has exactly one solution. d) the graphs of the equations are lines that intersect at one point because the equations have the same slope and the same y-intercept. the system has exactly one solution.