Dominic ralph and peter had just eaten a huge christmas meal. dominic now weighs half as much as ralph and peter weighs three times as much as dominic. together they weigh 720 pounds. how much does dominic weigh? a) 120 b) 240 c) 360 d) 400

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

Liz is shipping a package to her friend.the maximum weight of a medium flat-rate box is 20 pounds,including the box which weighs 6 ounces.write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.