In 2007, your company's sales revenues were $400,000. a vigorous advertising campaign increased sales by 20% in 2008, and then by an additional 30% in 2009. what were sale's revenues in 2009?

first we multiply 400,000 by 1.20 which equals 480,000 which is the sales revenue for 2008 now we multiply 480,000 by 1.30 which equals 624,000

so your sales revenue for 2009 is $640,000

please mark brainliest.

it should be a and d. lmk if i'm wrong xd

a=24; b=12

step-by-step explanation:

a/b=2: 1

a=2b

36/(1+2)=12

b=12

a=24