9514 1404 393
Answer:
a = 3
Step-by-step explanation:
The x-values 5, 3, 1 form an arithmetic sequence. The y-values will do the same: 1, 2, a = 1, 2, 3 -- a common difference of +1.
a = 3
Factorial is the correct answer because in combinations the order does not matter
Answer:
The factors are
.
The factors are not 
Step-by-step explanation:
Equation is
.
This equation can be written as follows:

Here,

Therefore,

So, the factors are
.
The factors are not 
I really sorry I have to do this I'm in a test I need help
Answer:
$172.50
Step-by-step explanation:
Simply do 230 x 0.75 which is the percent subtracted by 25 that decreases a value and makes it less