Anyone know how to factor 4x^2-4x-80?

(urgent ) use pi 3.14 to estimate the circumference of the circle to the nearest hundredth middle is 4in (urgent )

At the newest animated movie, for every 9 children, there are 4 adults. there are a total of 39 children and adults at the movie.

Carmen begins her next painting on a rectangular canvas that is 82.7 cm long and has a area of 8,137.68 cm2. will the painting fit in a frame with an opening that is 82.7 cm long and 95 cm wide? explain