The expression(5a-4b)(5a+4a) * A) 10a² - 8b²

B) 10a - 8b

C) 25a - 16b

D) 2 5a²-16b²

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

In two or more complete sentences, formulate how to use technology to calculate the appropriate regression model for the given data. you are not required to find the model, just choose the appropriate regression and explain how to use the technology. (-5,,2.,0.8), (0,-0.5), (2,-1.3), (3,-0.8), (5,2)

Me find the value of x each figure.