The driveway in front of my house if 20 feet wide and 100 feet long. if asphalt is ordered in a whole number of cubic yards, how many cubic yards of aspalt must be ordered to pave my driveway with a layer of asphalt three iches thick?

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?

Could someone with number 1 and 2

In the diagram, gef and hef are congruent. what is the value of x