300000*0.02=6000. So John gets 6000 dollars in commission.
Y=10x
hope this helped, have a good day
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