Step-by-step explanation:
Two angles are called suplementary when their measures add to 180 degrees.
D+F= 180
3x+5+2x= 180
5x+5=180
5x= 175
x= 35°
angle D = 3x+5= 3(35)+5= <u>110°</u>
7 x 21 is equivalent to 21 x 7
also 3 x 49
Answer:
So its all there
Step-by-step explanation: is included
It is 9 because you need to triple 3 so 3x3 is 9