Answer:
144*
Step-by-step explanation:
decagon has 10 sides every side is 144* angles
Answer:
(a) see attachment
(b) E(x) = 226/105
Step-by-step explanation: see attachment
Answer: 8.5%
7/82=0.0853
Multiply by 100 to get percentage
0.0853 x 100 = 8.53
Answer:
a is answer because of bodmas rule
10 x 7 = 70
1 x 7 = 7
9 x 7 = 70 - 7
9 x 7 = 63