A computer system valued at $1500 three years ago is now worth $600. Find the percentage decrease in the value or the computer system? 100 point answer please use the formula (P)(T)=A and show how you plugged everything in

How many grams must be adde to 970g to make 1 and a half kg

Let f(x)=2x and g(x)=2x. graph the functions on the same coordinate plane. what are the solutions to the equation f(x)=g(x) ?me asap

Astuntman jumping off a 20-m-high building is modeled by the equation h=20-5t^2, where t is the same in seconds. a high-speed camera is ready to film him between 15m and 10m above the ground. for which interval of time should the camera film him?