Can someone help me?

Describe the symmetry of the figure. identify lines of symmetry, if any. find the angle and the order of any rotational symmetry.

Segment ab is shown on the graph. which shows how to find the x-coordinate of the point that will divide ab into a 2: 3 ratio using the formula

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?