Using various puzzle pieces Marco forms the figure below what is the best estimate of the area of the figure?

Hell . what are the solutions to `10x^2 - 38x - 8 = 0`? is this when i find the factors and use the numbers within the factors to determine the zeros? i hope that made sense lol

Which of the following pair(s) of circles have las a common external tangent? select all that apply. a and b a and c b and c

Two friends are reading books. jimmy reads a book with 21,356 words. his friend bob reads a book with one-and-a-half times as many words. which expression represents the number of words bob reads?