Is there a picture of the data set that goes with this question?
X Y
50 17.65
400 133.2
450 149.85
500 166.5
Let x be the amount of weeks.
60 + 7x = 120
60 - 60 + 7x = 120 - 60
7/7x = 60/7
x = 8.571428571
The missing angle would be :
90°[right angle] + 45° = 135
180 - 135 = 45°
I took 135 away from 180 because angles in a triangle always add up to 180°
2223810294 + 55367457 + 23523546 = 2302701297