The correct answer would be: 50-(3x+4y+25) because the sum of what's in parethese is what it cost Sianna to buy all of it.
Answer:
<h2>Sam cycled fast, at a rate of 10 miles per hour.</h2>
Step-by-step explanation:
To solve this problem we have to find the slope of each case. The definition of a slope is:

Where
is the first point, and
is the second point.
Let's find each slope.
<h3>Sam.</h3>
Let's use the points
and 
Applying the definition of the slope, we have:

This relation means that Sam cycled 10 miles per hour.
<h3>Bobby.</h3>
Let's use the points
and 

Bobby cycled 9 miles per hour.
Therefore, according to these ratios, Sam cycled fast, at a rate of 10 miles per hour.
Answer:
364/27
Step-by-step explanation:
9, 3, 1, ... is a geometric sequence with common ratio r = 1/3.
The nth term is a1rn-1.
If a1rn-1 = 1/27, then 9(1/3)n-1 = 1/27
32(3-1)n-1 = 3-3
3231-n = 3-3
33-n = 3-3
3-n = -3
n = 6
The sum, Sn, of the first n terms of a geometric sequence is given by Sn = a1(1 - rn) / (1 - r).
So, 9 + 3 + 1 + ... + 1/27 = S6 = 9(1 - (1/3)6) / (1 - 1/3)
= 9(1 - 1/729) / (2/3)
= (27/2)(728/729) = 364/27
Answer:
A
Step-by-step explanation:
Cost of the car in "n" years=25000*(1+0.05)^n
Cost of the car in 2 years=25000*(1+0.05)^2=25000*(1.05)^2=27562.5