Help ASAP pLeAsEeE I’ll make you as brainlister

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

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?