5. Which expression has a value that is greater than 840 ? 360
A (9 x 104) + (7 x 103) + (3 x 102) + (6 x 104)
B (8 x 105) + (7 x 103) + (3 x 102) + (6 x 104)
C (8 x 105) + (7 x 104) + (3 x 103) + (6 x 104)
D (8 x 105) + (7 x 104) + (3 x 102) + (6 x 104)
because if you put it into the calculator c will be the highest and also the exponents for c are higher than all the other indicating that it is larger number and will be more than the others
