Ladafrica found a ruby that had been buried by the ancient Romans for 4.28 centuries ago. How many years has that ruby been underground? (100 years = 1 century) * A. 428 years
B. .0428 years
C. 4280 years
D. 0.428 years

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.