How do u find half of a circle

Without graphing the linear functions, find the coordinates of the point of intersection of their graphs: y=3x−11 and y=4

What is the volume of a rectangular prism if the length is 10.4 mm the width is 5 mm in the height is 8 mm

Abox contains 1 plain pencil and 4 pens. a second box contains 5 color pencils and 5 crayons. one item from each box is chosen at random. what is the probability that a plain pencil from the first box and a color pencil from the second box are selected? write your answer as a fraction in simplest form.