Answer:
C. 18
Step-by-step explanation:
We can find the numbers of payments using following formula
PV = PMT(1- (1+r)^-n)/r
PVr / PMT = 1 - (1+r)^-n
Where
PV = present value = $1,100
PMT = monthly payments = $71.50
r = interest rate = 19.2% / 12 = 1.6%
n = numbers of month = ?
Placing values in the formula
(1+r)^-n = 1 - PVr /PMT
1.016^-n = 1-1100 x 0.016/71.50
1.016^-n = 0.753846154
-n x log 1.016 = log 0.753846154
n = - log 0.753846154 /log 1.016
n = 17.8
n = 18 payments
Hi there!
The answer is

We have the following inequality.

We can divide both sides by -6, but because we divide by a negative number, we must flip the sign.

Answer: IM pretty sure its A
Step-by-step explanation: Thanks for being Brain member help.
The natural number , n is 30
<h3>How to determine the value</h3>
Given;
GCF(n, 70) = 10
LCM(n, 70) = 210
We have that;
LCM(A,B) x GCF(A, B)= A x B
Then,
(n, 70) = n × 70 = 70n
10 × 210 = 2100
Equate the two expressions
70n = 2100
n = 
n = 
Thus, the natural number , n is 30
Learn more about GCF and LCM here:
brainly.com/question/640517
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13×379=4927 and to make it easier try watching the online math course "How To Do Hard Problems in your Head" First Link I think