If you purchase 100 items that cost $.25 each, how much would the items cost all together?

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?

Which expression gives the area of the triangle shown below

Ineed with angles and the measure of them i have abc a is 65 and b is (3x-10) and c is (2x) find the value of x