What is 12.87+3.905? Show how to solve please.

To prove that def ~ gfh by the sss similarity theorem using the information provided in the diagram, it would be enough additional information to know that

The quadratic function h(t)=-16.1t^2+150 choose the graph representation

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?