Iwill give 10 points to first to answer

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?

Me asap! what is the slope of this line? enter your answer in the box.

The quadratic function h(t)=-16.1t^2+150 choose the graph representation