Dominic, ralf and peter have just eaten a huge christmas meal. dominic now weighs half as much as ralf, and peter weighs three times as much as dominic. together they weigh 720 pounds. how much does dominic weigh?

Two parallel lines are crossed by a transversal. what is the value of x? x = 40 x = 70 x = 110 x = 130

Monthly water bills for a city have a mean of $108.43 and a standard deviation of $32.09. find the probability that a randomly selected bill will have an amount greater than $155, which the city believes might indicate that someone is wasting water. would a bill that size be considered unusual?

Ten times the square of a non-zero number is eqaul to ninety times the number