50 people were asked if they had ever been to Mauritius or the Seychelles on holiday. 11 had been to Mauritius, 7 had been to the Seychelles and 35 had been to neither.
How many had been to both?

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

Let r = 3. what is the value of r + 58?

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?