okay so
117° + angle a = 180° (supplementary angle)
angle a = 180 - 117
= 63°
then angle a + angle b + 81° = 180° ( angle sum property)
so... 63° + angle b + 81° = 180
144 + angle b = 180°
angle b = 180 - 144
= 36°
hope this helps.
All you do is divide -12/20 by 4/4 which is -3/5
Answer:
She ordered 11 things
Step-by-step explanation:
you should have added the cost of each item then I could have given you the whole answer
Answer:
3
Step-by-step explanation:
BC
AC
BA
Answer:
Step-by-step explanation:
1/2 * ( 9 * 6 * 10)
1/2 * 540
270 
