What is 2/5 (3/4) in simplest form?

Acircle has the equation (x-2)^2 +y^2 =5. what are the coordinates of the circle's center?

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap

y=2x−1 5x−4y=1 is (1,1)(1,1) a solution of the system?