Answer:
To plot (4,2) start at the origin (0,0) and move right 4 units and up 2 units (4,2)
Answer:

Step-by-step explanation:






10 1/4 / 151 3/16 = 4/59
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39 x 73 - use a calculator or something if you need the answer for it.
Answer:

Step-by-step explanation:
We know that
, because
.
Now, angle 15° or 195° is not an important angle which can be solve by a given table like 30°, 45° or 60°. This means we have to use the calculator to find the more exact value, which is
