MATH/CHEM PLEASE HELP!
posted by Jade .
Give the answer to the following calculation with the correct number of significant digits. Report your answer in scientific notation.
(6.17 x 101 + 4.9 x 102) x (3.95 x 102 + 6.454 x 103)
i know how to solve for the answer, i just don't know the correct number of sig figs! please help!!!!

The 4.9 will limit all to two sig digits.