Answer:
Step-by-step explanation:
i). 

= 8a²
ii).
= 
= 
= 9a²b²c²
Answer:
C
Step-by-step explanation:
Oleg is correct because the least common denominator of both is 4, so each must have 4 peices
Every day she spends 35 euros
she had 315+35=350 euros
Answer:
a) 7/10
b) There is no improper fraction form for this
Answer:
Step-by-step explanation:
(number of sides-2)*180 = (6-2)*180 = 720°
a= 720/6= 120°
lines form 180° angles
b= 180-120= 60°
sum of angles in a triangle is 180, and the angles are ≡
c=180/3 = 60°
c and d are supplementary angles (they add to 180)
d= 180-60 = 120°
d ≡ e+e because are vertical angles
e= 120/2 = 60°
sum of angles in a triangle is 180
f= 180 -90-60 = 30°
(number of sides-2)*180 = (5-2)*180 = 540°
g= 540/5= 108°