I am pretty sure that it would be a primary source, because the photographer captures and surrounding and the people in the photograph at a particular time.
U times x times four then u get. eight x minus and then u multiply four times seven and u get 8x- 28 that is your answer unless u know what x is then u just multiply 8 times x then subtract 28
Washington D.C I pretty sure
The Senate is appointed by a state's legislature and not directly elected by the electorate, with each term lasting six years, whereas representative terms run for only two years. With the benefit of more time, the Senate is more stable meaning that decisions can be followed through on; this also has its pitfalls meaning that Senators don't reflect, always, the current mood of the country. With that said, I think that the Senate should have relatively more stability than the House of Representatives, but perhaps, should be re-elected every 3 years, not 6.