Help An administrative assistant can type 100 words in 90 seconds. What is the assistants rate of typing in word per minute

Will give brainliest sum of arithmetic series (sigma notation) find the numerical answer to the summation given below. (image shown below)

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.

Factor the polynomial by its greatest common monomial factor.