Find the inclination of a line.

4. the line 3x+5y=8

5. the line joining (-1,2) and (4,1)

the answers are

4. 149 degrees
5. 14 degrees

can someone explain how to do this question?

Convert 2000 swiss francs to dutch guilders

Li buys supplies so he can make and sell key chains. he begins to make a profit only after he sells 4 key chains. what point on the graph makes the most sense in this situation?

Helll ! 1,400 tons of wheat of two different varieties was delivered to the silo. when processing one variety, there was 2% of waste and 3% during the processing of the second variety of wheat. after the processing, the amount of remaining wheat was 1,364 tons. how many tons of each variety of wheat was delivered to the silo?