Find n(A) for the set A {1/3, 2/4, 3/5, 4/6,...,67/69, 68/70}

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

Sketch the vector field vector f( vector r ) = 8vector r in the xy-plane. select all that apply. the length of each vector is 8. the lengths of the vectors decrease as you move away from the origin. all the vectors point away from the origin. all the vectors point in the same direction. all the vectors point towards the origin. the lengths of the vectors increase as you move away from the origin.

An elevator travels 310 feet in 10 seconds. at that speed, how far can't his elevator travel in 12 seconds?