Answer:
the first one for the first question and the first one for the second one as well
Step-by-step explanation:
It's that second graph. Starts at (0,0) and slope = -12
So it goes ....
(0,0)
(1,-12)
(2,-24)
(3,-36)
(4,-48)
(5,-60)
So we know that the sum of angle of a triangle is equal 180 degree
than there are 10x-1 +35 +15x+4 = 180
10x +15x = 180 -38
25x = 142
x = 142/25
x = 5,68