Answer:
in simplest form is 
Step-by-step explanation:
Given fraction:

To reduce the fraction to simplest form.
In order to reduce the given fraction, we will divide the the numerator and denominator with GCF (Greatest common factor).
Finding GCF of 4 and 236.
Listing out the common factors.


GCF = 
Dividing numerator and denominator by 4.
⇒ 
⇒
[Reduced form]
Answer:
nCr.
Step-by-step explanation:
That would be nCr,
For example
5C2 = 5! / 2! (5-2)!
= 5! / 2!3!
Answer:

Step-by-step explanation:
we have

Applying property of exponents


Recall that to compute for the new amount of the original sum at a compound interest is
A(t) = P(1 + r/n)^(nt)
where P is the original amount, r is the interest rate, n is the number of times P is compounded each year, and t is the number of year.
With this, the total amount owed by Sam in five full years becomes [(120)(1 + 0.30/12)^60 ]. The total interest is the difference between the original amount owed and the amount that needs to be paid over time. Thus, total interest is [(120)(1 + 0.30/12)^60 ] - 120 = 407.97.
Therefore, the total interest is $407.97<span>.</span>