Answer:

Step-by-step explanation:
The nth term for the geometric sequence is given by:

where,
is the first term
r is the common ratio
n is the number of terms.
As per the statement:
For the geometric sequence of
and r=2
We have to find 
for n = 5;

Substitute the given values we have;

⇒
Therefore, the value of
is, 32
Answer:
21% of his students wear glasses
Step-by-step explanation:
The answer is 21% because 21/100 =21
Hope it helps.
Answer:

Step-by-step explanation:
The point-slope form of an equation of a line:

m - slope
(x₁, y₁) - point
The formula of a slope:

From the table we have the points (-10, 8) and (10, 4). Substitute:

The equation of a line:

Answer:
56
Step-by-step explanation:
6+7b-3a
Substitute:
6+7(8)-3(2)
Solve:
6+56-6
Simplify:
6+50
=56
This could be wrong because I'm going into the fifth grade but wouldn't it just be (7,-3)?