What is the value of a in the equation 5 a minus 10 b equals 45, when b equals 3?

The pressure exerted on the walls of a container by a gas enclosed within it is directly proportional to the temperature of the gas. if the pressure is 6 pounds per square inch when the temperature is find the pressure exerted when the temperature of the gas is 380 degrees f show work for the

Which is the graph of the function y=2(4)^x

You buy 4 items that cost 2.69 14.45 8.05 13.95 what is the estimated total round to the nearest dollar