Please Help attachments below.

Needs to be more then 5 points if I’m gon do all of that

Rounding decimals is very similar to rounding other numbers. if the hundredths and thousandths places of a decimal is forty-nine or less, they are dropped and the tenths place does not change. for example, rounding 0.843 to the nearest tenth would give 0.8. , your welcome !

Bc equals mb that should be your answer