Answer:
485.1
Step-by-step explanation:
6 . 3
x 7 7
+ 4 4 . 1
+ 4 4 1 . 0
4 8 5 . 1
basically break up 77 to 70 + 7
multiply 6.3 with both parts of the 77 (70 + 7):
70 x 6.3 = 441
7 x 6.3 = 44.1
then add those two sums together to get 485.1
