Troy puts $1300 in an account that does not earn any interest. every month
he deposits the same amount of money. this sequence represents his
account balance for the first few months:
$1300, $1500, $1700,
what is the explicit formula for the amount of money in his account in month
n?
o a. a(n) = 1300 - 200(n-1)
o b. a(n) = 200 - 1300(n - 1)
o c. a(n) = 200 + (n − 1)1300
o d. a[n) = 1300 + (n − 1)200

Option D

Step-by-step explanation:

You can clearly see that they said he added the same amount of money every day, so cross of Option A and B.

Now, you're left with C and D. And we know that N stands for negative, and on option c, it shows 200 before 1300, it's possible that you might have to change the addition sign to a subtraction sign, so cross of C. Now, you're left with D. D is the only answer that isn't crossed off, so D is the answer.

Hope I helped! <3

d

step-by-step explanation:

d

19.

step-by-step explanation:

you add the 9 in the tens column since it is a single digit and 9 plus zero is 9 so it is 19