Step-by-step explanation:
all angles of a triangle sum to 180
180 = 15x + 24x +21x
180=60x
solve for x
then substitute that for 24(x) to get the angle
Answer:
-4
Step-by-step explanation:
Answer:
1 and 4 should be the answer or -4x3y2 and 5x4y
Step-by-step explanation:
The best answer to the question above would be letter C. A canceled US Treasury check for the purchase of Alaska is an example of a primary source document. This is because the check was the direct source or the document that was used or that was present during the purchase of Alaska.
