Answer: The sum of the series is 2,548.
In a geometric series, the values are being multiplied by a constant rate. In this series, we are started at 7 and multiplying by 3.
Our series would be:
7 21 63 189 567 1701
If we add up those values, we have a total of 2,548.
Answer: AD = 108
BD = 105
ADB = 213
ABC = 182
<u>Step-by-step explanation:</u>
If no radius is given, assume it is length 1.
Then, the length of the arc is equal to the central angle.
Reminder that a circle is 360°

The central angle = 108°, so the arc length = 108

BD = BC + CD
= 35° + 70°
= 105°
The central angle = 105°, so the arc length = 105

ADB = AD + CD + BC
= 108° + 70° + 35°
= 213°
The central angle = 213°, so the arc length = 213

First, find the angle of AB.
AB = 360° - ADB
= 360° - 213°
= 147°
ABC = AB + BC
= 147° + 35°
= 182°
The central angle = 182°, so the arc length = 182
Answer:
76% of 298 would be 226.48
Step-by-step explanation:HOPE THIS HELPED <3