Ten marbles are in a bag four of them are red, if one marble is drawn out the bag what is the probability that it will be red

Aheated piece of metal cools according to the function c(x) = (.5)x ? 7, where x is measured in hours. a device is added that aids in cooling according to the function h(x) = ? x ? 2. what will be the temperature of the metal after two hours?

What is the solution of the systems of equations? y=2/3x+3 x=-2

Let f(x) = x+3 and g(x) = 1/x the graph of (fog)(x) is shown below what is the range of (fog)(x)?