The ratio of boys to girls in class is 2 to 8, what percent of the class is boys?

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

Jonathan can type 20 documents in 40 minutes ,and susan can type it in 30 minutes and jack can type it in 24 minutes working together ,how much time will it is take them type the same document

Quadrilateral abcd is translated up and to the right, and then rotated about point q. which congruency statement is correct?