Arthur earn $136 in three weeks he goes back to school in one he needs at least $189 in a new coat that he wants for school how much must arthur in the next week

What you have to do is find out how much he made each week. Because you know how much he made in 3, you can divide 136 into 3. 

136/3=45.333...

so the next thing you'd have to do is find out how much he needs in addition. So you do: 189-136= how much more he needs in the next week. 

189-136= 53 

hope thats what you wanted, if not, private message me and I will personally help you find the better answer. 

29. because you will divide each number of months by 12 to find the number of years. which would mean, 5, 12.5, 16, 45, 50, 72.5. which is crazy. anyhow, i think you find the median in the middle. and yea hope your test goes good