Plz helppp.

Which is the standard form for this number? (4 x 1 100 ) + (8 x 1 1,000 ) + ( 3 x 1 100,000 ) ? a) 0.004803 b) 0.04803 c) 0.0483 d) 0.483

How to use order of operation in 20 divide by 4 multiply 5 = 1

∆red ≅ ∆ by rule will give brainiest if possible