What is the area of the following circle? Either enter an exact answer in terms of or use 3.14 for 1 and enter your answer as a decimal.
d = 8

Type the correct answer in the box. consider the system of linear equations below. rewrite one of the two equations above in the form ax + by = c, where a, b, and c are constants, so that the sum of the new equation and the unchanged equation from the original system results in an equation in one variable.