Answer:
the slope is 
Step-by-step explanation:
Notice that you are given two points to use for the slope calculation:

So we use the formula for the slope of a line given two points:

Answer:
c = 154°
Step-by-step explanation:
I Hope this helps.
2/4 = 0,5
3,5 every 1/6 of an hour. To get the rate per hour multiply by 6.
3,5 x 6 = 21