Answer:
40 subscriptions
Step-by-step explanation:
25=5+0.50n
subtract 5 from both sides
20=0.50n
divide by 0.50
40=n
he sold 40 subscriptions
Answer:
he uses 30 pages
Step-by-step explanation:
turn 10% into a decimal. this would be .10
.10 • 300=30
30 pages
Answer:
The common ratio is 
The next term in the sequence is 2
Step-by-step explanation:
In a geometric sequence, the common ratio is the constant value you multiply a term by in order to find the value of the following term. Therefore, it is mathematically calculated as the quotient between a term and the term immediately before it. And it is in fact That is:
common ratio 
This quotient should be true for any two consecutive terms in the sequence.
so using the first two terms, we find:

You can test that this common ratio is true for all other terms listed:

So now, in order to find the term that follows, all we need to do is to multiply the last term given (8) by this common ratio:

Solution:
To find the equation of line passing through points A (1, 3) and B (3, 7).
we know that, to derive the equation of a line we first need to calculate the slope of the line. Slope m of a line at points
and
is given by -
.
Slope of the line at point A(1,3) and B(3,7)
.
.
.
Equation of a line using a point and a slope , 




The equation of line passing through points A (1, 3) and B (3, 7) : 