Answer:
Step-by-step explanation:
Let the third angle be x
Sum of all the angles of a triangle = 180°
25 + 40 + x = 180
65 + x = 180
x = 180 - 65
x = 115°
115 degrees
for all triangles, the sum of all their angles is 180 degrees so...
180-40-25=115
so the third angle is 115
-7
y=3x-7
x=0 ⇒ y= 3*0-7= -7
wdym by that what question actually
x and y can help you show you the constant rate or the unit rate
if you use a graph you can see that x mutipley my a certain number gets you y
this is the answer
