Answer:
First: 1/4
Second: 3/5
Step-by-step explanation:
FIRST:
You can easily solve this problem by creating a slope triangle between the points given.
1 up
———————- = 1/4
4 to the right
SECOND:
To solve for slope with two points, you do y1-y2/x1-x2.
1-4 -3
—— = — = 3/5
-3-2 -5
(n/6 + 8) - 3 = 7
(n/6 + 8) - 3 + 3 = 7 + 3
n/6 + 8 - 8 = 10 - 8
n/6 = 2
(n/6)(6) = 2(6)
n = 12
Answer: (B) -625
<u>Step-by-step explanation:</u>
Given the sequence {-500, -100, -20, -4, -0.8, ... }, we know that that the first term (a) is -500 and the ratio (r) is 
Input those values into the Sum formula:

465+18 = 483
The fraction was just to throw you off, it's not too hard if you look carefully since you get a whole number from it
The answer is 6.
Division is the opposite of multiplication and 3x6 is 18