Actually, all of the options are wrong: the original expression evaluates to
[tex] 8\cdot 50 = 400 [/tex]
while all the options evaluate to
- [tex] 4\cdot 50+4\cdot 4 = 216 [/tex]
- [tex] 8\cdot 50+8\cdot 4 = 432 [/tex]
- [tex] 8\cdot 50+8\cdot 54 = 832 [/tex]
- [tex] 50\cdot 8+50\cdot 4 = 600 [/tex]
