Find the sum below of the infinite geometric series.
8+4+2+1...

Solve the equation for b: a= (1/2)(b)(h)

Jennifer taking a quiz and has answered 13 questions so far. if there are 25 questions on jennifer test, how many questions does she have left to answer

In each diagram, line p is parallel to line f, and line t intersects lines p and f. based on the diagram, what is the value of x? ( provide explanation)