A.
because the total distance of every triangle 180. Add the two other angles so 42+ 57 =99. Then you have to subtract those two combined angles to find the missing one from the total distance, which is 180. 180-99=81. the answer is A. 81
Direct variation is of the form y=kx (inverse variation is of the form y=k/x)
Answer:
the answer is 725 i pretty sure
Step-by-step explanation:
Using y=Mx+b, the answer is y=10x-4.
