Answer:
40
Step-by-step explanation:
use slope formula (4-12)/(7-21) = 8/14 (8/14)*70 = 40
Answer:
10z + 5
Step-by-step explanation:
Answer:
Option B is correct.
sum of given geometric series is, 255
Step-by-step explanation:
Evaluate the geometric series: 
we can write this as:

Formula for the sum of the geometric series:
for r > 1
where
a is the first term
n is the number of terms
r is the common ratio
In the given series:
common ratio (r) = 2>1, n = 8 and first term(a) = 1
Since,

and so on...
then substitute the given values in [1] we have;

or

Therefore, the sum of given geometric series is, 255
The answer and explanation is given in the picture below
I hope it helps.
Answer:
x=−6
Step-by-step explanation: Brainliest:)