SOMEONE HELP ME PLEASE Tom can paint a house in 16 hours and Bob can paint the house in 12 hours how long would it take them to paint the house if they worked together?

Please show work!

Renita analyzed two dot plots showing the snowfall during the winter months for city a and for city b. she found that the median snowfall is 5 inches less in city a than in city b. the mean snowfall is about 2 inches less in city a than in city b. which explains why there is a difference in the measures of center for the sets of data?

There were 816 people at a concert when a band started to play. after each song, only half the people stayed to hear the next song. how many people were left at the concert after x songs? write a function to represent this scenario.

What are the measures of ∠a, ∠b, ∠c and ∠d? explain how to find each of the angles. measure need asap