Abuilding with a height of 40 ft casts a shadow that is 16ft long. a person standing next to the building casts a shadow that is 2ft long. how tall is the person?

Can someone check if i did this correct. it’s number 4 if you’re wondering.

As voters exit the polls, you ask a representative random sample of voters if they voted for a proposition. if the true percentage of voters who vote for the proposition is 63%, what is the probability that, in your sample, exactly 5 do not voted for the proposition before 2 voted for the proposition? the probability is

Which angle has the same measure as the dehedral angle formed by the orange face and the purple rectangle