9/10 divided by (-3/5) write the answer as a mixed number

When i add money am i supposed to make it like this 7+12 or 7.00+12.00 because i got 19 dollars for my answer

Which strategy is used by public health to reduce the incidence of food poisoning?

On ryan's last social studies test there were two types of questions true/false worth 3 points each and multiple choice questions worth 4 points each