When a window is open, the temperature in a room falls 5°f every 15 minutes. before the window is opened, the temperature was 70°f . use the ray tool to make a graph that shows the temperature of the room, t, after the window has been open for m minutes.

Given f(x) = 17-x^2what is the average rate of change in f(x) over the interval [1, 5]?

Hector and alex traded video games. alex gave hector one fourth of his video games in exchange for 6 video games. then he sold 3 video games and gave 2 video games to his brother. alex ended up with 16 video games. how many video games did alex have when he started?

X/y + 4y/x divided by x/y - 2y/x explain as in depth as you can how you simplfied the fractions. i don't know where to start on this : /